I frequently played flash games at http://www.kongregate.com/ and when I was not working, I would easily be up on the daily/weekly point leaders. Play games, get achievements, achievements are worth points based off of difficulty, etc. I frequented Kongregate so much that I got offered moderator status... twice... but had to deny due to other responsibilities at home at the time. Can't say I "ruled" the site because they're others that are higher level than me, and I never have much time to just sit and play flash games all day no matter how much I'd like to. I have however played many various games/sites including runescape/funorb, tribal wars, arcadeboss.com(a few long standing highscores), zOMG(mmo game on Gaia), FlyFF, to name very few, and excelled at them... that is... until I got bored of them and quit xD