I think the whole Generations line was pretty well done, but a few really stuck out as faves for me:

1.) Wheeljack - great colour scheme, clever transformation and my favorite character!

2.) Jetfire - great update of the classic figure, love the use of a helmet to transitiion between the original figure's look and having a face like skyfire from the G1 cartoon

3.) Warpath - he's a tank. Yes he has Popeye arms, but he's a tank!