Garnfellow said:4e looks like a fun game that may fix many of 3e's problems, but after 10 months of "marketing" I remain unconvinced that 4e is so much better as to justify converting three existing and very enjoyable 3.5e campaigns.
On first readthrough, I'm a huge 4e fan, ready to get a game going ASAP. The advice I gave a buddy of mine who's on the fence about 4e is "don't convert your current campaign." 4e's a fine rulesystem, but it's very different from 3.x in some fairly fundamental ways - I think conversion in mid-stream is going to be far more of a headache than it's worth. Much better to play out the campaign in 3.x and then give 4e a try - it'll still be around in six months or a year.
So on the poll, I picked both the 4e and 3.x options - I like 'em both, and don't see them as mutually exclusive.