Depends on who's writing him, really. It ranges from Big Green Plot Point to worthwhile reading pretty eratically. I don't have any Hulk stuff to share though to showcase both ends of his bipolar barometer, hopefully some other folks can step up to bat for him. My favorite version of Hulk I think has to be what I call the Idiot Savant hulk. You see Banner's mind working at a subconsious level while Hulk-chaos is going on. The Batman/Hulk crossover is Idiot Savant Hulk.