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[PlatinumDude]

Where do you get your EV spreads from, really? Take note that the only Ice Pokemon you'll see in OU are Mamoswine, (Black) Kyurem, the occasional Weavile and a Protean Greninja who just used Ice Beam. In OU, Ice attacks are mainly used as coverage moves, FYI, so I wouldn't really worry too much about that.

It should be noted that Salamence faces stiff competition from the other Dragon Pokemon in OU, like Garchomp, Haxorus and Black Kyurem. The introduction of Fairies severely hurt it, as it lacks moves that severely damage Fairies outside of the unreliable Iron Tail. Haxorus has access to Poison Jab, while Garchomp just hits Fairies hard with its STAB Earthquake (Salamence lacks STAB on the move). Who knows, things may change when Mega Salamence is officially released, when it can finally gets a good Flying STAB in Return/Double-Edge/Thrash, courtesy of Aerilate; regular Salamence lacks good STAB Flying moves (Aerial Ace is weak and Fly is easily predictable). For now, this is the best it can do:
-Dragon Dance
-Outrage/Dragon Claw
-Earthquake
-Fire Blast
Nature: Naive
EVs: 252 Atk/4 SAtk/252 Spe
Item: Life Orb/Lum Berry

Haxorus:
-Dragon Dance/Swords Dance
-Outrage
-Earthquake
-Taunt/Poison Jab
Nature: Adamant
EVs: 16 HP/252 Atk/240 Spe
Item: Life Orb/Lum Berry
Abiilty: Mold Breaker

Garchomp:
-Stealth Rock
-Outrage/Dragon Claw
-Earthquake
-Fire Blast/Swords Dance
Nature: Naive/Jolly
EVs: 252 Atk/4 SAtk/252 Spe
Item: Lum Berry/Focus Sash/Rocky Helmet

or
-Swords Dance
-Outrage/Dragon Claw
-Earthquake
-Stone Edge/Fire Fang
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb/Lum Berry

or
-Outrage
-Earthquake
-Rock Slide/Stone Edge
-Fire Blast/Dragon Claw
Nature: Naive/Jolly
EVs: 252 Atk/4 SAtk/252 Spe
Item: Choice Scarf

or
-Stealth Rock
-Dragon Tail
-Earthquake
-Fire Blast/Toxic
Nature: Impish
EVs: 252 HP/252 Def/4 SDef
Item: Rocky Helmet
Ability: Rough Skin

Kyurem:
-Substitute
-Roost
-Ice Beam
-Earth Power
Nature: Modest
EVs: 56 HP/200 SAtk/252 Spe
Item: Leftovers

Black Kyurem:
-Ice Beam
-Outrage/Roost/Substitute
-Fusion Bolt
-Earth Power
Nature: Mild/Rash
EVs: 56 Atk/252 SAtk/200 Spe
Item: Life Orb

or
-Dragon Claw
-Ice Beam
-Fusion Bolt
-Iron Head/Outrage
Nature: Lonely/Naughty
EVs: 252 Atk/56 SAtk/200 Spe
Item: Life Orb

or
-Outrage
-Dragon Claw
-Fusion Bolt
-Ice Beam/Iron Head
Nature: Naughty/Naive
EVs: 252 Atk/32 SAtk/224 Spe
Item: Choice Scarf

Eelektross is badly outclassed by other useful Electric Pokemon like Wash Rotom, Thundurus (either forme), Magnezone and Zapdos. Eelektross' bulk is decent at best, and its low Speed kinda hinders it. And even if you plan on keeping Eelektross, Coil outclasses Hone Claws completely, as it also gives a Defense boost in addition to Attack and accuracy.

More useful Electric Pokemon here:

Magnzone:
-Thunderbolt
-Volt Switch
-Flash Cannon
-Hidden Power (Fire)
Nature: Modest/Timid
EVs: 172 HP/252 SAtk/84 Spe (Modest) or 4 HP/252 SAtk/252 Spe (Timid)
Item: Choice Specs (Modest)/Choice Scarf (Timid)
Ability: Magnet Pull

or
-Magnet Rise
-Thunderbolt
-Flash Cannon
-Hidden Power (Fire)
Nature: Modest
EVs: 128 HP/252 SAtk/128 Spe
Item: Air Balloon
Ability: Magnet Pull

Thundurus:
-Thunderbolt
-Hidden Power (Ice)
-Psychic/Focus Blast
-Thunder Wave
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb/Leftovers
Ability: Prankster

or
-Nasty Plot
-Thunderbolt
-Hidden Power (Flying/Ice)
-Substitute/Focus Blast/Psychic
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Leftovers/Life Orb
Ability: Prankster

or
-Thunderbolt
-Knock Off
-Superpower/Thunder Wave
-Hidden Power (Ice)
Nature: Hasty/Naive
EVs: 76 Atk/180 SAtk/252 Spe
Item: Life Orb

Therian Thundurus:
-Nasty Plot
-Thunderbolt
-Hidden Power (Flying)
-Focus Blast
Nature: Modest
EVs: 20 HP/252 SAtk/236 Spe
Item: Leftovers/Lum Berry

or
-Agility
-Thunderbolt
-Hidden Power (Flying/Ice)
-Focus Blast/Psychic
Nature: Modest
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb

or
-Agility
-Nasty Plot
-Thunderbolt
-Hidden Power (Ice/Flying)
Nature: Modest
EVs: 156 HP/252 SAtk/100 Spe
Item: Life Orb/Leftovers

Wash Rotom:
-Volt Switch
-Hydro Pump
-Will-o-Wisp
-Pain Split/Rest
Nature: Bold/Calm
EVs: 248 HP/216 Def/44 Spe (Bold) or 248 HP/216 SDef/44 Spe (Calm)
Item: Leftovers/Chesto Berry

or
-Volt Switch
-Hydro Pump
-Hidden Power (Ice)/Will-o-Wisp
-Trick
Nature: Modest/Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Choice Scarf

Zapdos:
-Thunderbolt
-Defog
-Roost
-Heat Wave/Toxic/U-turn
Nature: Bold
EVs: 248 HP/168 Def/68 SAtk/20 Spe
Item: Leftovers

You're not making the most out of Gliscor's bulkiness. It's not meant to attack, but it's meant to check/counter powerful physical attackers like Mega Heracross and Mega Medicham that lacks Ice Punch:
-Earthquake
-Substitute/Knock Off
-Toxic
-Protect
Nature: Impish
EVs: 252 HP/20 Def/236 Spe
Item: Toxic Orb
Ability: Poison Heal

or
-Earthquake/Knock Off
-Toxic/Knock Off
-Taunt
-Roost
Nature: Careful/Impish
EVs: 252 HP/184 SDef/72 Spe (Careful) or 252 HP/160 Def/96 Spe (Impish)
Item: Toxic Orb
Ability: Poison Heal

Scolipede needs Protect over Rock Slide or Poison Jab in order to guarantee that it gets a Speed Boost:
-Megahorn
-Poison Jab/Rock Slide
-Earthquake
-Protect
Nature: Adamant
EVs: 16 HP/252 Atk/4 Def/236 Spe
Item: Life Orb
Ability: Speed Boost

Trace is the preferred ability over Synchronize on Gardevoir pre-Mega. It has utility for situations such as Tracing Heatran's Flash Fire to make vanilla Gardevoir immune to a predicted Fire Blast, Tracing a physical attacker's Intimidate to weaken them, etc. Also, Taunt is the better option over Magic Coat to block status moves completely; the latter takes good prediction to use. Psyshock is preferred over Psychic so Mega Gardevoir has a better chance against special walls. Also, Gardevoir could use more coverage and you're not taking advantage of the 100 Speed it has in Mega form:
-Psyshock
-Hyper Voice
-Focus Blast/Hidden Power (Ground)
-Taunt/Will-o-Wisp/Calm Mind
Nature: Timid/Modest
EVs: 24 Def/232 SAtk/252 Spe (avoids the 2HKO from Latios' Psyshock)
Item: Gardevoirite
Ability: Trace

You're gimping Greninja's ability to hit as hard as it can with that HP investment taken from its Special Attack. Greninja is still frail even with bulk investment. Hydro Pump > Surf simply because it hits harder and Greninja isn't that strong, really. The miss change is annoying, yes, but Greninja needs all the power it can get. To condense:
-Hydro Pump
-Ice Beam
-Extrasensory
-Dark Pulse/Hidden Power (Fire/Grass)/Grass Knot/Spikes
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb
Ability: Protean

If you really want to deal with the Ice Pokemon I mentioned, try to squeeze one of these in:

Ferrothorn:
-Stealth Rock
-Leech Seed
-Power Whip
-Gyro Ball/Thunder Wave/Knock Off
Nature: Relaxed
EVs: 252 HP/88 Def/168 SDef
Item: Leftovers
Ability: Iron Barbs

Scizor:
-U-turn
-Bullet Punch
-Superpower
-Pursuit/Knock Off
Nature: Adamant
EVs: 248 HP/252 Atk/8 SDef
Item: Choice Band
Ability: Technician

Bisharp:
-Sucker Punch
-Iron Head
-Knock Off
-Swords Dance/Pursuit
Nature: Adamant
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb/Dread Plate/Black Glasses
Ability: Defiant

Escavalier:
-Megahorn
-Iron Head
-Drill Run
-Knock Off/Pursuit
Nature: Adamant/Brave
EVs: 248 HP/252 Atk/8 SDef
Item: Assault Vest

Conkeldurr:
-Drain Punch
-Mach Punch
-Ice Punch/Knock Off
-Poison Jab/Stone Edge
Nature: Adamant
EVs: 252 Atk/236 SDef/20 Spe
Item: Assault Vest
Ability: Guts

Heatran:
-Lava Plume
-Toxic/Will-o-Wisp
-Taunt
-Stealth Rock/Protect
Nature: Calm
EVs: 248 HP/8 Def/252 SDef
Item: Leftovers

or
-Overheat
-Flash Cannon
-Earth Power/Hidden Power (Ice)
-Stone Edge/Hidden Power (Ice)
Nature: Modest
EVs: 252 SAtk/4 SDef/252 Spe
Item: Choice Scarf

or
-Fire Blast
-Earth Power/Toxic/Will-o-Wisp
-Taunt
-Stealth Rock
Nature: Modest
EVs: 36 HP/252 SAtk/220 Spe
Item: Air Balloon