I read Ultimate X-Men (The UK version) and i collect Ultimate Spider-Man in Trade Paperback form. I also have ultimate fantastic four, ultimate marvel team up and the ultimates in TPB. I basically read all of the ultimate titles (if you couldn't tell already).
I recommend reading the Ultimate Nightmare mini series.

I also read humour magazine 'Viz' as well.

I'm not a big fan of DC. However i really enjoy the Teen Titans, Batman Beyond ("Batman of the Future" in the UK) and Justice League cartoons.