Please help me with my Diamond team

[Hip-And-Happenin]

I'm new to 4th gen, and I need quite a bit of help for my team, so please rate and give advice for this team I'm planning. :)

Gyarados
Adamant
Dragon Dance
Earthquake
Ice Fang
Waterfall

Torterra
Impish
Earthquake
Wood Hammer
Stealth Rock
Stone Edge

Medicham
Adamant
Hi Jump Kick
Recover
Return
Thunder Punch

Drapion
Adamant
Cross Poison
Crunch
Fire Fang
Swords Dance

Honchkrow
Impish
Confuse Ray
Drill Peck
Night Slash/Shadow Ball
Toxic

Grumpig
Calm
Calm Mind
Psychic
Substitute
Magic Coat

I'm thinking this team is a huge mess, so I need your help to fix it! I definitely need a lot of help with the EV spreads, so any help would be highly appreciated. :)

EDIT:
Another team I was thinking of: (I think I prefer it, but it still needs a lot of work, because it's rather crazy [Pokemon Pearl])

Gorebyss
Bold
Amnesia
Iron Defense
Baton Pass
Surf

Ambipom
Rash
Agility
Nasty Plot
Baton Pass
Return

Houndoom
Timid
Flamethrower
Crunch
Sunny Day
Solarbeam

Electivire
Jolly
Screech
Thunder Punch
Ice Punch
Cross Chop

Drapion
Adamant
Swords Dance
Earthquake
Cross Poison
Thunder Fang

Blissey
Bold
Seismic Toss
Softboiled
Aromatherapy
Ice Beam

 

[Portujesus]

Recover in Medicham is worthless, because it's very frail. And Return has no real advantages over Ice Punch.
I like Drapion with EQ in place of Cross Poison.
Honchkrow doesn't have the staying power to be a annoyer, so you better take it out.
You need more Ice moves and more defensive pokés.

 

[Sora_8920]

I'm new to 4th gen, and I need quite a bit of help for my team, so please rate and give advice for this team I'm planning. :)

Gyarados @:Life Orb
Adamant
Dragon Dance
Earthquake
Ice Fang
Waterfall
Taunt in place of something.
Torterra @:Leftovers
Impish
Earthquake
Wood Hammer
Stealth Rock
Stone Edge
There are better pokemon that can Stealth Rock, Leech Seed in place of it.

Medicham @:Choice Band/Leftovers
Calm Nature
Hi Jump Kick
Substitute
Calm Mind
Focus Punch

Drapion @:Life Orb
Jolly
Night Slash
Earthquake/Brick Break
Swords Dance
Cross Poison/Ice Fang/Fire Fang/Knock off

Honchkrow @: Leftovers
Adamant/Jolly
Super Luck
Roost
Drill Peck
Night Slash
Whirlwind

Grumpig @:Leftovers
Calm
Calm Mind
Psychic
Substitute
Enegy Ball/Reflect/Light Screen.

I'm thinking this team is a huge mess, so I need your help to fix it! I definitely need a lot of help with the EV spreads, so any help would be highly appreciated. :)

Fixes In well, your post.

 

[Jimmyray]

I'm new to 4th gen, and I need quite a bit of help for my team, so please rate and give advice for this team I'm planning. :)

Gyarados
Adamant
Dragon Dance
Earthquake Return
Ice Fang Taunt
Waterfall

This can be very effective on a Gyrarados. Taunt to prevent any status changes on it. Return as a sweeping move for any pokemon that won't already be destroyed by Waterfall.

Torterra
Impish
Earthquake
Wood Hammer
Stealth Rock Curse
Stone Edge

Torterra is far too slow to be an effective Stealth Rocker. Use Curse to increase Defense and Attack for those powerful moves like Stone Edge.

Medicham
Adamant
Hi Jump Kick
Recover Psycho Cut/Ice Punch/Fire Punch
Return
Thunder Punch

Psycho Cut is an effective physical Psychic Move or one of the elemental Punches to cover more types that Medicham can do damage to.

Drapion
Adamant
Cross Poison
Crunch
Fire Fang Ice Fang
Swords Dance

Ice Fang instead of Fire Fang because the only super effective move type against Drapion is Ground. So Ice over Fire for me.

Honchkrow
Impish
Confuse Ray Swagger
Drill Peck/Aerial Ace
Night Slash/Shadow BallPursuit
Toxic

Shadow Ball is bad because Honchkrow has pretty bad Sp.Attack. Pursuit can be good if the opponent is switching out. Swagger because it causes more damage to the opponent if they hurt themself.

Grumpig
Calm
Calm Mind
Psychic
Substitute
Magic Coat

Never really used Grumpig, so I wouldn't know about him, sorry.

I'm thinking this team is a huge mess, so I need your help to fix it! I definitely need a lot of help with the EV spreads, so any help would be highly appreciated. :)

EDIT:
Another team I was thinking of: (I think I prefer it, but it still needs a lot of work, because it's rather crazy [Pokemon Pearl])

Gorebyss
Bold
Amnesia
Iron Defense
Baton Pass
Surf

Ambipom
Rash
Agility
Nasty Plot
Baton Pass
Return

Houndoom
Timid
Flamethrower
Crunch
Sunny Day
Solarbeam

Electivire
Jolly
Screech
Thunder Punch
Ice Punch
Cross Chop

Drapion
Adamant
Swords Dance
Earthquake
Cross Poison
Thunder Fang

Blissey
Bold
Seismic Toss
Softboiled
Aromatherapy
Ice Beam

Made some changes for your first team.

 

[Anti]

Uh, sorry, but gyarados has no need for return in 4th gen, or even 3rd if you get it HP flying. EQ and waterfall as its attack moves...and the taunt and Dragon dance obviously. For medicahm, I don't like hi jump kick. If you miss...ouch. Use a more accurate move. Again, I'm not fond of return here, since a STABed brick break does more damage and covers more types. /use two elemantal punches, psycho cut, and an accurate fighting move (physical) for medicham, and maybe slap a choice item onto it. Not specs obviously...but scarf or band might work.

 

[Azonic]

Gyarados@Life Orb
Trait: Intimidate
Nature: Jolly
EVs: 252 ATK/252 SPEED/4 HP

Waterfall
Earthquake
Taunt
DD