FLCL is one of a kind. I like it, but I definitely know it isn't for everyone.
As for recommendations, I'd recommend Cowboy Bebop if you liked Trigun and Samurai Champloo. It's not on Netflix though.
As for Netflix only, try these:
Darker than Black (1st season only)
If you like zombies, there is Highschool of the Dead. Be prepared for real heavy fan service though. Some people can't get passed that. I found it hilarious. It's also only 12 episodes so you can get through it quick.
Try those and then let me know. There are a bunch of really good ones not on Netflix. If you see something on Netflix you think you might be interested in, let me know and I'll tell you what I thought.
This post was edited on 12/27 at 1:15 am