This is what I've seen so far and what I thought of them.

>Cowboy Bebop
8/10, good, deserves its status
>NGE + EoE
The original series on its own is 8/10, combined with EoE, it's 10/10
>Black Lagoon
8/10, just great action and entertainment
>Sword Art Online
1/10, no comment
>FLCL
10/10, one of the greatest pieces of animation ever made
>Ergo Proxy
7/10, good setting and characters, story was weak though and it was overly pretentious
>Baccano
8/10, good, especially loved the train chapter
>Madoka Magicka
5/10, highly overrated imo
>Ghost in the Shell, Stand Alone Complex
9/10, just great worldbuilding and thematic exploration along with good characters
>Gantz
2/10, dropped it after 15 episodes, I liked the girl's fat tits though
>Monster
6/10, too long, could've been cut down by 20 episodes
>Death Note
6/10, eh, it was alright.
>Gunbuster
8/10, I enjoyed it, not much else to add
>Kill la Kill
5/10, Takes a nosedive about 12 episodes in and never gets good again
>FMAB
7/10,Decent shounen, but overrated by normies
>Serial Experiments Lain
7/10, It certainly had depth, but I felt like it had too much weird shit in place of story and character
>Samurai Champloo
6/10, very boring for the most part, the last 3 episodes were great though