Okay, I'm back and ready for some in-dept analysis.
Swampert is just a beast. Nice defences and decent attack stats.
Surf
Ice Beam
Earthquake
Is all you really need. Use whatever move you want as a filler.
Swellow is fast, and has got a nice Attack. That, combined with a decent physical movepool is useful.
Return
Fly
Steel Wing
Aerial Ace
Sometimes it's rather useful to have a non-missing move at your disposual.
Sceptile. Fast and high special attack. Decent movepool does the trick
Leaf Blade
Dragon Claw
(Hidden Power [Fire])
This is almost all you need. You won't be able to harm steel types though, so HP is an option if you can get it. Fill in the gaps with whatever moves you want.
Blaziken is one fierce chicken, you better check twice to see if you've really knocked it out
Flamethrower
Sky Uppercut
(Hidden Power [Ground] / Rock Slide / Return)
The first two moves almost do the trick. Rock Slide would be really useful, but I don't think you can get. HP [Ground] does the same thing, but is slightly weaker if you got highest BP (70). Return can be used to do some more coverage though, if you can't get any of those rock moves. Fill the gap
Sableye is quite a cool pokemon, really. Too bad it doesn't learn Swords Dance ...
Shadow Ball
Brick Break
Recover
Toxic
This does require breeding for Recover, but I think it will pay off. Ghost + Fight gives unresisted neutral coverage.
Absol has really got the looks, too bad most of it's third Gen moves are special.
Swords Dance
Shadow Ball
Return
Thief
Thief for conveniance, don't use it thinking: whow, this is STAB and thus overpowered. It's special... But it can be used to steal others items, and what is more fun than that?