Actually, it's quite the other way around. Isner is the better version than Raonic and Isner also has a lot more to offer than Raonic. A lot of the matters are about opinions I agree but when it comes to assessing one's game, you can always see who has what and it's then no longer a matter of opinion. For example, you can always say Federer is more complete than Nadal and it’s a fact. Anyway, I've seen enough of both Isner and Raonic and I can see who has more game than whom, but I can give you this – Isner is more experienced right now since he’s been on tour for quite some time now, so perhaps, a few years’ time, Raonic will become more complete than he is right now. Or if you are a fan, you can always hope.
'Actually, it's quite the other way around' LOL...is it?..all opinions dear... I've seen both play also.... a TV is handy now and then. IMO Raonic is a better player than Isner.... Isner has experience at doing sweet FA at slams.... Raonic at least has potential and plenty time on his side to be a more complete player ...Isner peaked and even that wasnt upto much in terms of challenging for the major tournaments.