Well I played DotA quite a lot a few years back and I must say, DotA 2 is less than I expected (thoughts based on the championship). It doesn't seem to have taken advantage of the fact that it's not limited to Warcraft 3s engine anymore.It is just a revamped original DotA, which is basically another Heroes of Newerth. Also, the UI or HUD or w/e you'd like to call it, is freaking horrible, almost as bad as LoL's UI in it's early days. I really hope that they will make it a little more minimal and more appealing and I'd really like to see some more different mechanics introduced to the game so it's more distinguishable and unique.