Oh man, they’re both really good… I think it depends on what you’re personally looking for a title. Wolverine and The X-Men is more my speed, with crazy, quirky ideas, some of my favorite characters (Doop, Bamfs, etc.); Uncanny is the big giant action book, and will be a cornerstone to the Marvel U. Both are well written with great art. So there’s your non-answer 🙂
Uncanny X-men or Wolverine and the X-men? Which wins the battle of “what I should read?” I can only get one and I haven’t been thrilled with Uncanny since Fraction left.