I am sad to hear that the earlier part of iClassic's sparring community was dominated by today's most well-known Graal *********s. Kevin is a good at sparring, but I can't ever imagine Shinta being good. There's a reason he avoids sparring. He's the type to call you a booster around his circle and friends and then refuse to spar you if you ask him about it.
I refuse to respect either of them because all I ever see them do is romancing underage Graal girls, and that's a little bit disgusting to me. If you asked me to try and make sense of it, I'd say those two were good sparrers early in the game's release because of their age. They probably had the mental capacity to understand the mechanics of sparring and how to use them to their advantage, so naturally it was probably easy to beat the 12-year-old girl with iCarly wallpaper. PCs (who are naturally older) came along and the game grew older and people got better at sparring. Kevin is no longer amazing and Shinta is non-existent. I don't even like Comyt and find it incredibly difficult to take his personality seriously, but he is better than both of them.