Floyd is easily top 35 all time maybe even top 30, but he would need several more career/legacy defining wins too shoot that high up the list. He was just too cautious about picking the "right opponents" for too long. Now if he decided to spend the next 5 years, challenging himself against fighters who legitimately have a chance of hurting him (Floyd is incapable of losing a decision, he has to be KO'd or stopped on cuts to actually lose a fight) then I don't see how anyone could argue against him being top 5. He has permanently cemented his spot above Pacquiao on the all time list though, lets hope that's not good enough for Floyd. It would be a shame, if we never seen what such a magician in the ring could do against legitimate threats.
So you're saying that if he wins the next 4-5 fights against fighters who could legitimately hurt him he could jump from 30 to 5? That's a hell of a jump for winning 4-5 fights.