Just to nerd out for a moment, having already defended Bas while making my case for Mo as the worst HW champ...
...I now want to defend Ricco. First and foremost, he lost by getting knocked out by the surging (and roided up lean and mean) 6'8'' 265-pound monster sprawl-and-brawler Tim Sylvia. Absolutely no shame in that. If styles make fights, Ricco having to fight Tim is the definition of a nightmare. Before he ran into The Maine-iac, let's not forget that Ricco's run through the UFC HW division is maybe the most impressive title run in UFC history. (Obvious #1 contender is GSP tearing through the WW division, but it's a solid debate.) Including his victory over Randy to claim the then-vacant UFC HW title, Ricco was 14-1 overall and undefeated in the UFC at 5-0. He didn't just beat his opponents, he fucking mauled them. He was a freight train. He dominated the Sambo youngster Andrei Arlovski, steamrolled the veteran Pete Williams, beat the utter fuck out of the gorilla Jeff Monson, destroyed Tsuyoshi Kohsaka, and didn't just pulverize but even outwrestled Randy. Ricco Suave was amazing, and most impressive of all was the way that every single fight he got better technically and got in better shape. He was new and improved each and every time he stepped in the cage in every facet of the game. Oh and he was also competing in ADCC and fucking kneebarred the ostensibly invincible HW submission GOAT Big Nog while racking up a 14-6 overall ADCC record which included winning the +99 kg division gold medal in 1998 and silver medal in 1999 as well as the 1999 absolute division bronze medal.
No way Ricco is worse than Mo Smith or Dan Severn or even Kevin Randleman. I'd even put him above Josh Barnett who while legit got stripped for roids. Far from the bottom of the barrel.