Prime Rampage beat Cyril Abidi twice under K-1 rules... the first fight, in which Quinton KO'd Abidi in the first round was seen as an upset back then, and the "Marseilles Bad Boy" wanted his revenge.
This time Jackson countered his kickboxing with his boxing, and won a decision.
I know Abidi is probably not regarded very highly by the new generation of UFC fans who missed on the K-1 golden era, but even if he wasn't a champion, he was still very dangerous.
He beat Peter Aerts twice in a row just 2 years before the Rampage fights, and he had his legendary fight against long time rival Jérôme Lebanner 3 years later, and he was still considered to be in his prime at that point (2005).
Oh shit, just remembered that Cyril had a kickboxing fight just a few weeks ago against Rukiya Anpo, and I forgot to check it out... let's see if youtube can help us out...
Yes, it's up there! Let's check it out, shall we
Rampage might have gotten lucky on every single one of his splits decisions, since they all could have realistically be scored for his opponent and no one would have minded (against Matt Lindland, Ninja Rua, Murilo Bustamante, Lyoto Machida & Satoshi Ishii)...
But he was also a great fighter who would have been a problem for anyone in the current LHW division.