I'll go first with drjd.
+ You are nice and kind. Your posts are funny and, believe it or not, I sometimes enjoy handing you the win.
- You are a bit over competitive, but we are all used to it by now
/ You don't have to change anything. We love you the way you are.
! Your over-competitiveness is what makes you special in this forum. And your symbolic name (potato), of course.