well, not exactly smart as in school smarts, but as in who can debate the best. prove valid point and make reasonable statements..
my top 5 in no real order are..
The Necromancer( Often proves valid statements on conterversy topics)
Bouncedoggydog( Oh god this nigga is smart, but sometimes he goes a tad
off subject with his intelligence)
Gunman the great( do I really have to explain?..)
Kryogenix(if the topic interests me, I will post good arguments)
The End (that abortion thread a while back was taking a beating by The End and his statements.)