From your second paragraph it appears your only critieria is contest placings, so using that logic how can you argue that Flex was even comaprable to Yates since he never beat him?
And no Nasser did not only beat them when they were off. He deserved at least second in 95 but was placed third (still ahead of an "on" Shawn Ray) because he was still a newcomer in the top ranks. Then in 96, 97, and 98 - three years in a row, he beat Levrone at the Olympia - are you saying Levrone was "off" for all three of those years? From 95 Olympia to the 99 Arnold Classic (Nasser's prime), Ray only beat him once at the 96 Olympia.
Yep, many people had Flex winning the 1993 O, and in fact if the criteria wasn't a over the top freak look, Flex would have won. Nasser's Rookie year nor any year can compare to Flex winning his first 4 pro shows and coming second to Yates.
Byt the mid to late 90's Levrone didn't take the O seriously, he switched from taking the O seriously to taking the Arnold seriously, then by 1999, he seemed to switch gears, and took the O seriously and then didn't really work about the Arnold, even Lee Priest was beating him.
Face it Nasser, at his best wouldn't equal to Kev, Flex at their best. He wasn't built for it, plus he like Dillett had a weak back. You are delusional to think other wise. Look at the pics of Kevin, the guy was the one of the only dudes (Dillett was the other one) who could be a mass monster and asthestically pleasing, Flex couldn't play the mass game.
There are many different aspects, and beating one or so competitors is one of them. Ray looked better from front to back than Nasser did, his only flaw was being 205, he could have easily blown into a freak like Nasser or Yates, it is evident by his quads. Ray could have been 235-240 if he so choose. But he kept it in check and played by his own rules. Keeping a classical physique that will get him respect when he's long gone.