I find playing Federer and Nadal really easy on Topspin. I struggle more against Djokovic and Murray but I still usually win, but I sometimes drop a set.
I was actually pretty good at tennis when I used to play, but nothing special. Not got great health these days so I cant play anymore
But you started a career with a created player or play with other top? I found pretty tough to play in hardest level with a created player vs. the tops.
Pretty tough also to found an opponent online since the 11' PSN crash, so I've sold the game after 2-3 months.