Charizard: A must for me.
Item: Petaya Berry
Flamethrower, Substitute, Dragon Pulse, HP Grass
A Charizard moveset that many are no doubt familiar with. It worked well for me in Gen IV, and I guess it will do so in Gen V.
Chansey: With the new Evolution Stone, Chansey makes a wonderful wall.
Ability: Natural Cure
Rest, Thunder Wave, Aromatherapy, Counter
Chansey is the special wall and the team support on this team. Rest allows it to easily heal off any damage it has taken, switching out to remove the Sleep status. Thunder Wave helps any Pokemon to take down the enemy. Aromatherapy gets rid of annoying status on my team. Counter allows for some damage, as Chansey's high HP (and Natural Cure+Rest) allows for good use of this move.
Machamp: The physical powerhouse of the team.
Dynamicpunch, Stone Edge, Bullet Punch, Bulk Up
While Machamp might have been forgotten with his younger brother Conkeldurr's arrival, I find Machamp a better Pokemon. Dynamicpunch and Stone Edge are guarenteed to hit, meaning almost no Pokemon can survive. Bullet Punch allows for revenge killing. Bulk up makes Machamp even more formidable.
Nidoking: The Coverage
Item: Life Orb
Ability: Sheer Force
Earth Power, Ice Beam, Sucker Punch, Dragon Tail
With type coverage, revenge killing, and phazing, Nidoking fits a number of roles. I am assumingthat only Ice Beam and Earth Power will be affected by Sheer Force.
Ditto: The Revenge Killer
Item: Choice Scarf
Ditto goes out and takes down a weakened opponent. Perfect!
Ability: Water Absorb
Dragon Dance, Body Slam, Waterfall, Ice Shard
Lapras switches in on a Water type attack or even a Ground type attack and it sets up while the opponent switches out.