Gurren lagann
Neon Genesis evangelion
Code geass
Gundam wing
Mobile suit zeta gundam
Genesis of aquarion
The big O
Star driver
Eureka seven: AO
The Big O was great, till the ending happened.
Gasakari if you are pretty bored, pretty boring series if ask me because of the poorly written story, background, too much going on. Good luck getting past episode 6.
Armored Trooper Votoms I you want to see lots of shooting, cheesy 80's style cut outs, sort of slow start, season two had some good mech action.
Blue Gender if you want to watch a starship troopers style conflict against bugs as main characters are killed left and right. Slightly better than Gasakari.
Gundam MS 8th Team if you liked Mobile Suit Gundam and Wing, you should like this one. One of the best series in the franchise(in my opinion).
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