Tryning not to name any of the known classics this is what i came up with off top:
Desert Punk - kept me off balance
alot of stuff was unexpected
FLCL
Shigurui Death Frenzy - top 3 samurai series hands down, very intense
katekyo hitman reborn - piff
gunslinger girl - heavily slept on
darker than black 1and2 - dope concept and execution
now and then, here and there - gritty child army, rarely see stuff like this
soul eater - piff up until the cliche ending, but piff nonetheless
samurai 7 - was expecting more but still good
moritibo - dope
Ergo Proxy - philosophical show, dialogue heavy but it makes sense for what it is
Blood+ - decent action
Ninja Scroll - cot damn classic