Interesting question, but one I have a longer than one line answer to:
I love silver age DC comics, Superman, Supergirl, World's finest etc etc (noticing a pattern?). But modern DC comics and me just don't click (mainly cos of all the ret-con stuff that's gone on, I still don't get all that stuff with Infinate Crisis).
Now the modern comics I do like are Marval. I really like the style of narative and the art design, plus the relatable heros, like the guys in X-men. So there we go.