in no particular order
1. Buffaloman
his match with Kinnikuman, had to be his prime, he was really evil and really awesome in that one.
2. Ashuraman
the arm collecting he did was freaky, prince of the underworld, and his Ashura Busters were awesome.
3. Satan Cross
the name, the looks, the matches he's had, excellent.
4. Brocken Jr.
they could have done much more with him, but oh well, at least he looks cool.
5. Suneagator
love his claw form
6. Kinnikuman Zebra
split personality reminds me of Great Muta.
7. Sunshine
the many forms he can take is really cool
8. Parthenon
I don't know why, he just looks cool
9. Bikeman
hey man it's a transformer
10. Akuma Shogun
Hell's Mary-go-round, Hell's Guillotine, just too cool, if it wasn't for him,
Buffaloman would have easily been the head of the Akuma Chojin, but
with Shogun, they actually topped Buffaloman!!!
honorable mention
Big The Budo/Neptune King