4th gen competitive team

basically this is the team I've decided to breed and I have two pokemon who I'm going to use and I wanted to build a team around them the two main guys are

Latios@ Choice specs
Timid 4hp/252sp.atk/252spd
Tbolt
Ice beam(redundant coverage with surf but hits psuedo dragons harder might swap for trick)
Surf
Draco meteor
cant remember what its hidden power is but its not fire :L

Garchomp@choice band
jolly 4hp/252/252
EQ
Outrage
Stone edge
dragon claw
pretty standard I know garchomp is uber but we make our list based on whats allowed in the battle tower/factory

now here is my dilema I have a few ways I could go and I want to take the best option

if I was to go down the sandstorm route tyranitar would obviously take the 3rd spot

Tyranitar@leftovers
careful 252hp/4atk/252sp.def(criticism welcomed I never used tyranitar before)
payback
stone edge
super power
protect

tyranitar@choice band
adamant 252 hp/252atk/4sp.def
stone edge
earthquake
pursuit
crunch/payback

bronzong(my 2nd favorite after chomp)
brave 252hp/252atk/4sp.def 0speed ivs @macho brace
trick
gyro ball
EQ
stealth rock
I like this set because a lot of my friends will expect trick room or stealth rocks and try to taunt me only to be met with a nice gyro ball to the face it has its problems but its usually gets 2 attacks off unless its up against fire(duh)

Bronzong@leftovers
bold 252atk/252def/4atk
stealth rocks
gyro ball
EQ
protect/explosion/trickroom/hypnosis/rest
bulkier set with leftovers

dugtrio@focus sash
adamant 252atk/4sp.def/242 speed
EQ
stone edge
sucker punch
reversal
arena trap is invaluable deals with heatran,infernape,tyranitar sash is its only item because its so frail

tentacruel@leftovers
toxic spikes
surf/hydro pump
protect
sludge bomb/rapid spin(friends rarely set up anything)

so those are the 4 pokemon I would add if I decide to go down the sandstorm route some other notable mentions are rhyperior,aerodactyl,gliscor,mamoswine,hippowdon but I have no experience with any of them and they have bad defensive typings

the other route I considered was kind of a hyper offensive team
gyarados@life orb/mystic water,leftovers
adamant/jolly 252atk/4def/252 speed or 240hp/252atk/16speed
waterfall
dragon dance
EQ
stone edge/ice fang/ outrage/bounce/taunt

infernape@life orb
hasty 252atk/50sp.atk/208 speed(outspeeds garchomp)
overheat
close combat
stone edge/grass knot/u-turn/mach punch
taunt/EQ
can be played around with a bit overheat,close combat,stone edge and taunt is probably its best set

bronzong or scizor would be my steel type
the mach brace set I mentioned earlier for bronzong
scizor@choice band
252hp/252atk/4sp.def
bullet punch
super power
u-turn
pursuit/night slash

or sword dance set
adamant 4hp/252atk/252 speed @leftovers
swords dance
bullet punch
super power
substitute
might change around the evs and put some from speed into hp to make sub more viable

zapdos @leftovers
timid 192hp/64def/252 speed
roost
substitute
thunderbolt
toxic
adds a little bulk to the team the 3rd weakness to ice is crippling however and it could easily be replaced by someone else if anyone has any ideas for a really good special sweeper was thinking alakazam/scarf porygonz/rotom-w specs

so yeah I cant decide which way I should go because I cant decide which is better but I'm kinda leaning towards hyper offense because everyone uses sandstorm so I dunno opinions are greatly appreciated :)

Ice Beam is redundant with Draco Meteor, not Surf. And Latios is an Uber too, but it's still allowed in the Battle Tower for some reason:
-Draco Meteor
-Surf
-Hidden Power (Fire)/Dragon Pulse
-Trick
Nature: Timid
EVs: 4 HP/252 Atk/252 Spe
Item: Choice Specs/Choice Scarf

For the Sandstorm route, Tyranitar has a multitude of sets to choose from. Payback isn't the best option, as there are 'mons slower than Tyranitar that would render Payback ineffecitve:
-Stone Edge
-Crunch
-Pursuit
-Earthquake/Superpower
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Choice Scarf

or
-Stone Edge
-Crunch
-Pursuit
-Aqua Tai/Earthquake
Nature: Adamant
EVs: 180 HP/252 Atk/76 Spe
Item: Choice Band

or
-Dragon Dance
-Crunch
-Rock Slide/Stone Edge
-Fire Punch/Aqua Tail/Earthquake
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Babiri Berry/Lum Berry/Life Orb

or
-Stone Edge/Crunch
-Superpower
-Pursuit
-Flamethrower/Fire Blast/Ice Beam
Nature: Hasty
EVs: 252 Atk/16 SAtk/240 Spe
Item: Babiri Berry/Expert Belt

or
-Substitute
-Focus Punch
-Dark Pulse/Crunch
-Ice Beam/Thunderbolt/Flamethrower
Nature: Quiet
EVs: 252 HP/52 Atk/176 SAtk/28 Spe
Item: Leftovers

or
-Curse
-Crunch
-Rest
-Sleep Talk/Fire Punch
Nature: Careful
EVs: 252 HP/40 Def/216 SDef
Item: Leftovers

or
-Flamethrower
-Ice Beam
-Dark Pulse/Crunch/Thunderbolt
-Superpower
Nature: Hasty/Naive
EVs: 56 Atk/252 SAtk/200 Spe
Item: Expert Belt

Either of Bronzong's sets are viable, but why are you using a Bold nature on the second set when it clearly has physical moves? The nature and EV spread for that set should be Sassy with 252 HP/84 Atk/80 Def/92 SDef.

Don't use Hydro Pump on defensive Tentacruel as the low PP and accuracy can bite you in the butt in the long run:
-Toxic Spikes
-Rapid Spin
-Surf
-Sludge Bomb/Hidden Power (Electric)
Nature: Calm
EVs: 252 HP/120 Def/136 SDef
Item: Black Sludge
Ability: Liquid Ooze

or
-Rapid Spin
-Hydro Pump/Surf
-Sludge Bomb
-Ice Beam/Toxic Spikes
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb/Black Sludge
Ability: Liquid Ooze

For the hyper-offensive route, use this for Infernape's set. Don't bother with EQ:
-Close Combat
-Overheat/Fire Blast
-U-turn/Grass Knot
-Stone Edge/Mach Punch
Nature: Hasty/Naive
EVs: 252 Atk/48 SAtk/208 Spe
Item: Life Orb

or
-Fire Blast/Flamethrower
-Close Combat
-Grass Knot
-Hidden Power (Ice)
Nature: Hasty/Naive
EVs: 48 Atk/252 SAtk/208 Spe
Item: Life Orb

Whether you want Bronzong or Scizor depends on whether or not you want to support the team or attack outright. I don't see what purpose Sub has on Scizor, tbh:

Scizor:
-U-turn
-Bullet Punch
-Superpower
-Pursuit/Quick Attack
Nature: Adamant
EVs: 248 HP/252 Atk/8 Spe
Item: Choice Band
Ability: Technician

or
-Swords Dance
-Bullet Punch
-Brick Break/Superpower
-Bug Bite/Roost/Quick Attack
Nature: Adamant
EVs: 4 HP/252 Atk/252 Spe
Item: Leftovers/Life Orb
Ability: Technician

or
-Swords Dance
-Bullet Punch
-Bug Bite/Superpower
-Roost
Nature: Adamant
EVs: 252 HP/40 Atk/216 SDef
Item: Leftovers/Iron Plate
Ability: Technician

Thank's I got confused with the natures in my head I was thinking plus def and bold came to mind first I meant impish but sassy is much better sub on non-choice band scizor is mainly just for scouting status kinda pointless because its so slow but against slower pokemon or if I know my opponent will switch I get the sub up and then I'm safe to swords dance or get off a superpower if i need too against the switched in heatran I think I'm going to run with the offensive route it takes a lot less prediction any comments on the earlier gyarados the ev split is obvious but should I run waterfall,ddance,ice fang,EQ ice/water have nice coverage and earthquake is for empoleon metagross and magnezone and other obvious electric types
this is what Ive decided to run

latios,garchomp

Infernape
overheat
close combat
u-turn
stone edge/ mach punch (which would you recommend I can decide between priority and coverage

ddance gyarados
waterfall
ddance
EQ
ice fang

scizor@choiceband
u-turn
super power
bullet punch
pursuit(quick attack doesnt get stab and the only thing it hits that steel cant hit normally is water I think unless fighting resist steel im not sure :L

and for the last spot I need a special sweeper so which do you think is best of these specs raikou,specs/scarf rotom-w,scarf porygon-z,nasty plot azelf,specs jolteon or gengar?