I have a Rogue 10 / Swashbuckler 3 Tiefling. He's pretty much set on the offensive damage (Imp. Two-Weapon, Daring Outlaw, Craven, Staggering Strike). Str 16, Dex 24, Con 14, Int 18, Wis 12, Cha 8.
I feel that any more levels in Rogue or Swashbuckler won't really help improve him in areas that...