I'm fairly boring and probably have bad taste, but:
Anime:
-DBZ is cool in general, though I mostly thank it for giving us Buu's Fury on the GBA.
-Yu-Gi-Oh, fun stuff, watched it as Saturday Morning TV for a while.
-Pokemon, of course. I thought I only liked pre-Season 9 stuff, since that was when 4Kids stopped dubbing and it stopped showing on network TV, but I've been going back to it with Pokemon TV on the official site, and I'm liking pretty much everything I see. DP is certainly the most filler-y, though it's made 10x worse by TR's incessant rhyming... I guess it just doesn't translate well (though, it did actually start really late into Season 8, so...). BW is quite awesome, but David Rolfe still made the best theme songs.
-Dinosaur King, because it was like Pokemon and had Veronica Taylor and David Rolfe.
-MegaMan NT Warrior. It complements one of my favorite video game series, and has Andrew Francis.
Manga:
I've read exactly one issue of Shonen Jump. There was something Yu-Gi-Oh in it, but I don't remember what it was, and the rest of the issue was more... "involved" stuff, where I had no idea what was going on (mind, I was like 8). The only thing I can really say I enjoyed in it was Bobobo-bo Bo-bobo. There was a parody of DBZ in it, and my friends and I were really into it at that point, so it was a clear winner.