Title says it all. What do you think is the best TF toyline of the 21st century so far?

One note: this doesn't define stuff like Encore, since those TFs are from a different era of toy engineering. Rather, this is the line with the best original molds from 2000 onward.

I have little experience with TF toylines compared to most of you, so my answer is going to be limited by that. My vote is for Animated, owing to the fact that not only do they capture the likeness of the characters nearly spot-on, they're fun in a way that doesn't compromise the rest of the toy significantly.