I'm very very excited for Lugnut and Windcharger. Perceptor is looking really good aswell - I hope they give him an AHM style sniper rifle and eyepiece (or at least include the rifle - although that said you could just as easily use Blurr's).

Jazz looks too much like the Smokescreen/Prowl/Silverstreak mold, which was one that I really didn't like (and also mistransformed - look at his torso, I'm assuming it's not just a gap in the real thing). Thunderwing actually looks quite nice although if his legs just hang out the back of his vehicle mode like that then it's a bit of a fatal flaw (again I'm assuming some rampant mistransformation has gone on here). Tracks' arms look a bit weedy (and his backpack is again mistransformed). If I had to rank them

Very excited: Lugnut, Windcharger, Perceptor

Reasonably anticipating: Thunderwing, Tracks, Legends Megatron (finally something for my MP figures to play with!)

Unfussed: Jazz, Scourge

Absolutely no volition to get: Other legends, Hoist.