The Energon Pub

Grimlock is cool, but I don't really want any more Masterpiece figures. They're far too tempting and expensive, but not all that much fun once you get past the wow factor.

Animated:

I put a priority on getting as much as possible of what's been in the cartoon thus far.

Arcee
deluxe Femscream
Cyb Wasp/Bumblebee
Supreme Omega

Following that,

Beachcomber
Hot Rod
Blackout

Universe:

Triplechanger Springer (easy repaint into Sandstorm)
Wheeljack
Jazz(absolutely must be a Porshe, otherwise don't bother)
Scourge
Trailbreaker/Hoist
Snarl (Stegosaurus)

Voyager or Ultra class Sludge.
Ultra class Galvatron
Ultra class Rodimus Prime

Powermaster Prime
Headmaster Scorponok