Alright then - I'd say PF's Duelist is almost definitely a better combatant than the Rogue 3/Swashbuckler 17 (Though rogue/SB might still be good as a skills monkey option). I should look through the PF PrC's...I'm starting a PF barbarian, and there might be something worth taking for me. Only books open are PF and Paizo supplements though.
Unfortunately, your options are quite slim in that case, as none of the PRCs in the new book advance barbarian abilities. You MIGHT find something in one of Paizo's adventures, but I'm not sure.
Yeah...I figured as much. At least there's some new feats though - what do you think of this as a feat line? (and then I'll stop before the thread gets derailed)
Feats
[spoiler]1st hmn: Power Attack
1st char: Extra Rage
3rd: Cleave
6th: That double-damage one
9th: Improved Critical (Falchion or whatever magic weapon I've found by then)
12th: Improved Initiative
15th: Staggering Critical
18th: Stunning Critical[/spoiler]