I skimmed through this thread, but from what I saw there aren't many good suggestions. So, I shall help.
(Listed from Seriously Recommended to Not So Much)
Tengen Toppa Gurren Lagann: One of the few anime, if not only, that I can find nothing wrong with.
Yu Yu Hakusho: Another great anime
Gintama: Never seen the anime, but the manga kicks ass. As long as the anime is faithful to the manga, hilarious shit.
Death Note: Great plot, charecters you want to tie up and leave in your basement, and a good art style
Monster (Cursed is going to ban me for this >.<): Great plot, the charecter's names are fun to say, and full of twists.
Code Geass: Decent plot, intresting looking charecters, and hot chicks.
Higurashi no Naku Koro Ni: Suspensful, with cute charecters who kill each other >:3
Bleach: Eh... I feel bad putting this so low. I'm a big fan of the manga (keyword being "manga"), but the anime isn't nearly as good as the manga. All the good gags are taken out, the charecter designs look stupid in the anime (why the hell does Ichigo have his grey uniform on every episode?!), they add scenes that ruin the story, and I don't like it in color.
So I recommened reading this on OneManga instead of watching it.
Naruto: Anime sucks. Nvr read the manga, don't intend to. Watch the Shikamaru vs. Temari fight in the Chunin exams arc, and then the Granny Chiyo + Sakura vs Sasori fight in Shipudden. Only good parts of the anime.