When I play PvP I try to always go mid lane as a mage, or I'll support the ADC on bottom lane. Last night I played top lane two games in a row as a melee champion (Darius). I had a lot of fun. Did pretty decent overall. I still prefer mid lane with a mage any day of the week, but it was a nice change up. It's good to learn all the lanes anyway. Here's my two scores:
Game 1 - 11 kills, 4 deaths, 4 assists.
Game 2 - 8 kills, 4 deaths, 4 assists.
Neither game was mind blowing, but for being new at top/melee, I felt I held my own. We won both games either way