I prefer 2.0 to 3.0. But I honestly haven't taken the time with 3.0. Every time I sit down and look at it, I get the same feeling I would if I were to sit down and read an academic theory paper on something I wasn't really interested in. It just *seems* more complicated than I'm in the mood for - and not much fun.
I expect the developers have put a lot of work into it, so sympathies to those guys, but right now my excitement meter for 3.0 is pretty low.