>> Rider..

[Ultima Shadow]

While butt shots aren't necessary for sexyness, I don't mind at all.

if he didn't have Rider going around killing things she would die.

Not true. It's because of Shinji that Rider actually was defeated. Sakura is the strongest out of the masters (atleast mana-wise) so if Sakura had stayed Rider's master, Rider would still have been much stronger than when Shinji was her master and had her drain soul-energy from people. So really... Rider should just have stabbed Shinji like in black orb's masterpice, and then made a new pact with Sakura.