OU is fun but people take it way too seriously. Rage quitting, abusive language.... shiz gets hectic. Why not take it easy and play for a bit of fun? Using NU pokemon and beating OU pokemon is one of the most satisfying things in the world, it's up there with climaxing. So here's my team.

Espeon
Ev's- 252 Speed, 252 Special Attack, 4 HP
Item-Focus Sash
Ability-Synchronize
Nature-Timid
Item-Focus Sash
Ability-Synchronize
Nature-Timid
Move1-Baton Pass
Move2-Calm Mind
Move3-Curse
Move4-Psychic
Move2-Calm Mind
Move3-Curse
Move4-Psychic
Extra-As a lead espeon brings speed, damage and baton passable abilities. Psychic is a powerful move that gets STABed to a decent move. By using calm mind/curse in turn with the focus sash, espeon can atleast get 1 stat boost if facing a physical lead, if the baton pass doesn't seem right, you can always just try and sweep with espeon itself. The main idea of curse is for Marowak and possible Tauros whereas calm mind works for espeon, Regice and Ninetails. Curse also provides a massive dent in trick room teams by giving them a taste of their own medicine.

Marowak
Ev's-252 Attack, 252 Def, 4 Hp
Item-Thick Club
Ability-Lightning Rod
Nature-Adamant
Item-Thick Club
Ability-Lightning Rod
Nature-Adamant
Move1-Earthquake
Move2-Focus Punch
Move3-Fire Punch
Move4-Outrage
Move2-Focus Punch
Move3-Fire Punch
Move4-Outrage
Extra-The movepool here is pretty basic. Earthquake for STAB ownage, focus punch for walls such as blissey/chansey/togekiss (providing they don't attack), fire punch for scizor/forretress and stuff like that, and finally outrage for dragon types. This set comes hand in hand with the curse boost(s) from espeon aswell.

Regice
Ev's-252 Def, 132 Speed, 124 Special Attack
Item-Leftovers
Ability-Clear Body
Nature-Timid
Item-Leftovers
Ability-Clear Body
Nature-Timid
Move1-Rock Polish
Move2-Ice Beam
Move3-Thunder Bolt
Move4-Flash Cannon
Move2-Ice Beam
Move3-Thunder Bolt
Move4-Flash Cannon
Extra-Since regice has a beast defence, special defence and special attack. When these stats are boosted by espeon from calm mind he is indestructable.... almost. Then with rock polish he becomes fast aswell. Fast+strong+tank+good moves=sweep..... I think

Ninetails
Ev's-252 Speed, 252 Special Attack, 4 HP
Item-Wide Lens
Ability-Flash Fire
Nature-Timid
Item-Wide Lens
Ability-Flash Fire
Nature-Timid
Move1-Hypnosis
Move2-Nasty Plot
Move3-Fire Blast
Move4-Energy Ball
Move2-Nasty Plot
Move3-Fire Blast
Move4-Energy Ball
Extra-Also a baton passable team member... but can hold it's own without espeon's help. With wide lens hypnosis is helped a little bit to make setting up alot easier. Nasty plot is then used to boost the special attack to a decent level and then sweeping with either fire blast or energy ball (wide lens again helping fire blast's accuracy). Heatran and other fire types are the only real problem with this set but half of the team can help out with these types.

Tauros
Ev's-252 Attack, 252 Speed, 4 HP
Item-Life Orb
Ability-Intimidate
Nature-Jolly
Item-Life Orb
Ability-Intimidate
Nature-Jolly
Move1-Earthquake
Move2-Return
Move3-Outrage
Move4-Zen Headbut
Move2-Return
Move3-Outrage
Move4-Zen Headbut
Extra-Tauros with his life orb is a pokemon that can switch in when a team pokemon faints and usually can revenge kill with the high speed, attack and movepool. all of these moves are for power but also provide pretty decent type coverage. Return is only there for STAB reasons which goes up to 150ish base power.

Machoke
Ev's-252 Attack, 252 Speed, 4 HP
Item-Choice Scarf
Ability-No Guard
Nature-Jolly
Item-Choice Scarf
Ability-No Guard
Nature-Jolly
Move1-Earthquake
Move2-Fire Punch
Move3-Bullet Punch
Move4-Dynamic Punch
Move2-Fire Punch
Move3-Bullet Punch
Move4-Dynamic Punch
Extra-Machoke is pretty much what machamp is but without the "(BAN ME PLEASE) muncher" label. with 100 base power he can do enough to hold his own but his speed hinders him greatly. That's what the choice scarf is for, even if it does lock him into one move. But that one move should be enough to either make faint........ or atleast confuse them enough to make them ragequit! :D
Final Note-This team is all about having fun. The sad thing is, it has a 1/2 win to loss ratio for me.... in OU. Any comments/questions/improvements would be gladly accepted and taken in.
Cheers for taking the time to look at it.