Originally posted by ares834
Thanos.
Thanos is a pirate?
Don't know who Ryoko is but I'd certainly give Thanos the edge over Atomsk.
Ryoko's from Tenchi Muyo. She's powered by the gems of Washu, one of the three goddesses of the Tenchi universe and her month. At one gem, how she is in most of the series, she's fairly weak- her and her ship (which draws it's power from her) effortlessly dismantle what's basically a bigger version of the Death Star. Like, she did it while drunk, and instead of firing weapons she just rammed through it a bunch of times to write stuff and draw faces in it's hull. Ryoko's fun like that.
Fully matured and with all three gems, which the creators have released official artwork showing, she's practically a goddess herself and would be universal level.
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Also from the Tenchi continuity is Ryoko Balta, who's a normal planet simply named after the former (main-Ryoko is rather a famous figure, being over a thousand years old). She's much more mundane and has a pretty badass, but normal ship.