There's quite a few fighters around today who have outrageous egos. Khan, Broner, Froch are so big headed and have stupidly high opinions of themselves. When you hear them talk it's sometimes hard to believe how they could genuinely think that way. So who has the biggest ego, past or present?
Well to be fair, fighters have to have a high level of confidence in themselves and their abilities (even if it's a false sense of confidence.) I will say though it's been quite some time since I saw fighters who were as narcissistic as Broner or Khan. I'd love to see those 2 guys fight each other solely for the pre-fight hype. FLoyd was also a very arrogant fighter for a good part of his career, but as he's gotten older he's definitely toned down his ego-centric ways (at least inside the ring.)
Truly great fighters have egos for a reason. And I know they have to be confident but I'm thinking more like guys who have an over exaggerated opinion on themselves thinking they are too good to fight certain guys etc