Really quite a lot of underrated players, Christo is certainly one. Mikey, Fitz and sXe are all others, as is Rising, but he has been labelled underrated for far too long, that he really isn't anymore.
I wouldn't really call them underrated tbh. Most of them are good scum players and decent enough town players when they put in the effort. Maybe underrated by the newer players. Definitely agree re Chr1st0's award though