Coleman wasn't in his prime when they fought in Vegas. and I'm not discrediting AA at all. When he fought fought Fedor he was a top-5 heavyweight. Possibly top-3. He was in my top-3. Tim Sylvia was top-10 by default. When Big Tim was the UFC HW champ (2 wins over AA) Pride still existed. The whole "UFC Champ is 1 or 2" rule didn't exist back then. Tim Sylvia was #5 or #6 after his 2nd win over AA. Fedor, Nogs, Mirko, Barnett were all ranked ahead of him. He never moved higher than #5 in the World. He stayed at #5 with his win over Monson. Randy came in after retirement, weighed 50-70 pounds less than him, and embarrassed him. That dropped him to 8 or 9 imo. He beat a LHW in Brandon Vera by holding him against the cage. Kept him at 8 or 9. He was then subbed by Nogs. No shame there, was winning up to the sub. Stays at 8 or 9 or could even be dropped to 10 or 11. He was still top-10, but he was on his way out and barely holding on.
Brett Rogers was NOT a top-10 opponent no matter what any Fedor-loving ranking maker wants you to believe. In MMA there are a bunch of different crowds, but there are two super-crowds; the UFC-lovers and the UFC-haters. UFC-lovers discredit everything outside the UFC. UFC-haters over-rate everything outside the UFC. There are also a huge crowd of Fedor-huggers. And they will do anything they can to validate a Fedor opponent. The combination of UFC-haters/Fedor-huggers have tricked the world into believing that a single win over a ranked fighter makes you a top-10 guy. I would argue for Rogers to break the top-10 if he beat Arlovski before Arlovski had his soul stolen in the Fedor fight, but he didn't. Rogers was barely top-20. He might have been undefeated, but who was he undefeated against?
In my opinion, Fedor has two top-level fights over his last 4; Werdum and AA. Both top-ranked guys. And even then, the Werdum fight was laughed at because it looked so one-sided on paper. Your argument is that no other heavyweight has as many top-10 fights in the same period, but Brock, Mir, Carwin, and Nogs all have at least 2 top-level fights on their record since the beginning of 2008.
People (Fedor fans) have been saying that it doesn't matter who Fedor fights, he stays at #1 until he loses. Now that he's lost, he's still #1 because nobody has the same record as he does. blah blah blah blah blah. The simple fact is this; Fedor is not fighting the best fighters in the world anymore. The UFC owns 8 of the top 10 heavyweight fighters in the World. 7 if you put Overeem in the Top-10. I do/don't because as you said "he hasn't faced any top competition". And after those 3 (Fedor, Werdum, Overeem) the UFC probably has the 17 that make up the top-20. The winner of Brock/Carwin is the #1 heavyweight fighter on the planet. Not the greatest heavyweight of all time, but the best heavyweight fighter in the world right now. Fedor is still great and still one of the p4p kings, but as far as rankings go, he's no longer #1.
And while I agree that people who completely go off the deep-end trying to discredit Fedor are annoying, people who go the other way with their ridiculous nuthugging are just as annoying. Fedor still holds the title of best HW of all-time. But he is no longer the current best heavyweight.
edit: just read the italics in the quote box. I agree with a lot of it. I too wanted to see him in the UFC. And don't dislike him at all. He's one of the very best fighters and people in the sport. But the people behind him (M-1) are an embarrassment and his hardcore fans are almost as bad as BJ Penn fans. Anyways, sorry for lumping you in with the "huggers", I've read so much garbage since the loss from both sides of the fence and just jumped in. Should've read more of the back-posts before responding to you.