It's funny how the wave of Sherdoggers change around here over generations. Back in 2005 - 2009, it got so old hearing about how Fedor was a god. Now he's just the guy who got exposed KO'd by a MW in Henderson.
Rack up a few losses after 10 years and a 27 fight undefeated streak outside your prime, and you're suddenly nothing. Stipe is good, but he doesn't hold a candle to 2000 - 2010 Fedor. He crushed a few cans in his time, but he was also fighting the best HWs on the planet whenever they got signed, and he steamrolled them all. Even when he was in trouble, he quickly got out of it. He had it all: world class BJJ, powerful looping punches that caught everyone on the chin, sambo throws, traditional wrestling, devestating GnP...and he had endless cardio. No one else at HW has ever come close to that sort of well roundedness and consistency.
New fans don't think Randleman, Nog, Mirko, Arlovski, Coleman, Fujita, Schilt and Hunt are big wins now, because naturally they've since fallen out of their primes and retired. At the time, he demolished everyone, including world class specialists, in every facet of MMA, and consistently. Stipe has 3x defenses and now holds the record for the most consecutive HW defenses in the UFC....Fedor jumped ship between orgs, but to win 27 fights in a row at HW, beating the names he beat (many of them multiple times) will probably never be done again.
Even if Stipe defends his belt against Valasquez and someone like Werdum again, I'd still put him behind Fedor.