Xel
The Paladin
good taste
Fate Edison is a wild ride in general. He is also almost definitely True Berserker in Strange Fake who appears Babbage style as a big scary robot man. Personally I like it when Fate goes full buck wild, one of my favorite Servants is Berserker Jack the Ripper for being one of the coolest takes on a legend that Fate has done. Then again Strange Fake in general is great and might beat out Zero as the best entry to the series and I really need to sit down and read the light novels.
Strange Fake, from what I know (can't read moon and never found a translation) adheres to the old rules. All their servants take from the legends instead of just being stuff entirely unrelated. Probably part of why I like what I read about it so much.