You're an upcoming fighter and you have been invited to train with the aforementioned coaches. Who would you choose?
Roach - not technically superior to Mayweather but even with his disease more articulate and actually have game planS for each fight. Knows exactly what to say between rounds. Probably the best analyzer of a fighter out there right now. Access to Ariza is an incredible benefit. Biggest downside is you are fighting for time which is a major issue. Excellent stable. Garcia - has a great stable to spar and observe.
Very true, although Roach is a great strategist-coach, an equally important part of being with him is access to Ariza's scientific training methods.
Roger Mayweather. Floyd Sr doesn't seem like he is committed when training certain fighters. Roach isn't a defensive trainer. Garcia would be great as well.
Garcia! I appreciate the fact that he does not try to change the fighters style but focus on bringing the best of them according to their skills. Also I prefer the fighters he currently trains.