Superior Spider-Man was incredible! I was very put off by the idea of it, but the execution was great. Amazing X-Men and Fantastic Four have been good too. Marvel's got some good ongoing titles, but the event stories turn me off so hard.

I pretty much only stick to Bat-titles with DC. The newish weekly title Batman Eternal has been really interesting. Batman and Robin is probably the best DC book imo.

Image comics have a $1 Image Special type thing every once in a while. If you go to your comic shop they should have one tucked away somewhere so if you don't like it you didn't waste too much money on it.