McNabb was a #2 1st round pick, not some 6th rounder...Alex Smith was an overall #1 pick. Mahomes was a #10 1st round pick. 2 rings with all of that for
Reid, without more championships, isn't in this conversation yet. The Chiefs aren't exactly on the come up at this point...
He's been a HC 25 years. 5 more and he's done. If he wins 2 or 3 more SBs in that time then, sure, he is in the conversation. His NFL competition is obviously BB, who did more with less (12 AFCC games, 9 SBs, 6 rings--all with one QB, good Defense and a bunch of journeymen at Offensive skill positions).