>Fate
Wagie then lone adventurer in fuck knows where. Gets Seiba in his afterlife that's actually real
>UBW
Rin's apprentice who accomplishes life-or-death missions in fuck knows where. Becomes strong as hell w/ Archer's powers
>HF
Wagie but he gets to shag Sakura daily... even if it really isn't him in that body. Rider gets to assist too

UBW is probably the best one for the readers's sake since he continues to do epic shonen hijinks, but I'm not sure if it's the best one for his own sake. If Rin stops acting like a bitch towards him, it might make for the best outcome.

>>717295424
HA is the true best end even if it means him being gangstalked by Bazett and Caren for the rest of his life