State of boxing, the heavy weights were usually the big money makers in boxing. If you look at the recent years, there really hasn't been a big heavyweight name, and that's what boxing has relied on...
And the other huge problem, boxers dodging each other. Oscar De La Hoya comes to mind, Hopkins who never went out of his division, Mayweather now who prefers to ride the money train instead of fighting tough opponents, or simply not fight, and the list goes on and on... Take Lennox Lewis, he fought Vitali Klitshko and won because of a cut, but in a really competitive fight, and he wasted no time to retire...
But there was great names in boxing, there still are. Roy Jones Junior was huge, jump to heavyweight unprecedented, De La Hoya, Trinidad, Mosley, Nasseem Hamed (hate to admit it, but he made quite some noise and was entertaining), Gatti, Calzaghe recently. The only thing is that most of these boxers don't want to face each other, they'd rather fight poor opposition rather than take the chance of losing against other superior level boxers... Or they go for money in facing smaller opponents, or opponents pas their primes.
Again, Manny is a breath of fresh air, just look at his list of opponents, in multiple weight classes: Cotto, Hatton, Hoya, Diaz, Marquez, Barrera, Morales, he's given a lot to fight fans...
I really wouldn't be too optimist for MP in a MP vs FM, I'd really say it could go either way, as in 50/50, no matter how good MP can look against other opponents, he could just look bad against FM... MP has lost fights, Moralez, Marquez's draw in which he was knocked down 3 times could have went to Marquez had he not been knocked down 3 times... So yeah he's good, but FM would be the best fighter he's ever faced, and like I mentioned, MP has already lost...
I think it's way, way too early for MP to retire, he's still in his prime, he's not taking heavy punishment in most of his fights, why should he retire? I don't think anyone is talking about his retirement, he's definitely got more than a couple fights left in him.
If Mayweather trained really hard he'd be hard to beat.
Does he not train hard usually? Even if he didn't train hard, I'm sure he'd be very hard to beat anyhow... He's still easily in the top two P4P, whether you rank MP #1 or FM #1, no one really comes close.