I am absolutely the wrong person to talk to about whether or not you should read Gaiman, but that is because I'm really burned out on him--I hit that point where I'd read so much of his stuff that I see all his chess moves ten steps before he makes them. But his stuff that I've loved, I REALLY REALLY love. As evidenced by the stack of Sandman sitting next to me on the couch while I blather on about being burned out. (But that is because there are bandom-related shenanigans afoot)

But wow does he fanboy productively. Just... WOW.