well, why not...
Low Kick, Block, Headbutt,
Head Smash, Whirlpool
Head Smash is a huge addition to Aggrons movepool. CBer and probably Rock Polisher ( along with general Aggron usage ) will increase abit imo. I think Aggron will be UU soon.
Headbutt,
Switcheroo
This wont change much, but due to Arbok getting Switcheroo, he got more possibilities and I think Choice items will be far more common on him.
String Shot, Low Kick, Block, Headbutt,
Curse
I am not sure if this might be even useful, but Curse on Armaldo seems decent, since he already has low speed.. but I'd prefer Swords Dance anyday.
Pain Split, Role Play,
Magic Coat, Headbutt
Not much to add, Pain Split gives Banette some kind of recovery ( but its not bulky =s ); Magic Coat is a nice addition for a Lead to throw some status back.
Worry Seed,
Magic Coat, Low Kick, Headbutt,
Nasty Plot
Well, Magic Coat, again, is a nice addition and it could work on a lead set or sth like that =s, Nasty Plot makes Cacturne more diverse since it has equal attacking stats ( 115 ), so it got more unpredictable as it can easily go for a special set too.
Pain Split, String Shot, Worry Seed,
Block, Headbutt,
Curse
Got nice moves this time (noone will use Pain Split when it has Recover ). After switching in, it could Block something that cant hurt him too much, Recover the taken damage and Curse a few times ( 6x ). It got a Bonus since it cant be roared, etc away.
Dragon Dance, Whirlpool
Yeah, one of the Pkm talked about the most.. because it got DD.. with Adamant, its Speed gets to 313, with Jolly, to 343. It outspeeds some stuff after a DD, but I dont think it'll be THAT threatening to jump to OU. UU is possible though.
Drifblim:
Pain Split, Tailwind, Role Play,
Weather Ball
Pain Split got Drifblim some sort of recovery besides Rest. Weather Ball may work, dunno, on a weather-based (sun imo ) team.
Golduck: Worry Seed,
Magic Coat, Low Kick, Headbutt,
Encore, Whirlpool
hooray.. his usage might not rise much, but at least he got some additions.. besides Magic Coat, Golduck got Encore, which might help him set up some CMs easier.. ( sth with Magic Coat and Encore could also be used as a lead I think )
Role Play, Magic Coat, Heal Bell, Headbutt,
Nasty Plot
yay, Jynx got Nasty Plot, it'll sure boost her usage abit ( in UU, so it'll go up ). She got much more power now. I havent done some calcs yet, but some 2KOs might turn to OHKOs, too.
Role Play, Magic Coat, Low Kick, Headbutt,
Recover
Kecleon got Recover, this might help it stalling stuff easier, making some damage undone etc..
Agility, Whirlpool
A way so Kingler gets past its average speed.. I dont think it will do much though, but Kingler outspeeding some stuff is actually good, so it can probably KO some faster Pokemon that before they KO you back.
Headbutt,
Switcheroo
With Switcheroo, Manectric can not only fill the last moveslot on the Choice Sets, it can also switch it to its counters, like Regice
Role Play, Magic Coat, Headbutt,
Nasty Plot
Nasty Plot enables Mr. Mime to pass some +2 SpA boosts..
String Shot,
Water Spout, Whirlpool
With a Scarf attached, Octillery can do the same as Wailord, just with more power.
I'll do the rest later since its late here.