Steelbound Fighter is neat for rp not to mention a fighter with SLA is very nice
I LOVE the flavor of Kinetic Knight although there's a fair bit of hoops you have to jump through to get it to work the way you like
Kensai Magus.. hooooo boy did I make a monster with this one. Take a level in monk so you get yet another ability score to ac (preferably martial artist to avoid the alignment restriction) The abomination I ended up with had over 50 AC after buffs, crit on 15-20 and in a single crit could deal 300+ damage... its was uh... I refuse to actually use it lol (Kirin Style OP, add double INT to damage, then crit with that shit) ALL of her arcana went into swashbuckler deeds so she had precise strike and evasive and all that it was all kinds of busted.
Arrowsong Minstrel turns bard into something resembling an eldritch archer magus while retaining the important bard bits (inspire courage) I really like the flavor of it too. I imagine a bow resembling those from FF XIV A realm reborn, that are also harps, and as he looses an arrow he also plucks the strings, conjuring a mystic melody to imbue the arrow with magic mid-flight. I love it
The Enigma mesmerist archetype is just silly. As of level 8 I can pick this guy here and be forever invisible to him with sneak attack dice to boot like.... c'mon paizo
the Gendarme Cavalier. The reason for this one being its level 20 ability (a longshot sure but its very nice) granting quadruple damage with a lance on a mounted charge, and if you confirm a crit its automatically maximum damage... thats pretty hot if you ask me. A standard lance gets 1d8 and crits for x3 meaning if you crit at level 20 with a gendarme thats an auto-maxed x6 damage attack with even just an off-the shelf nothing special lance 6d8 plus 6 times your strength plus 6 times your challenge damage bonus like.... what the shit. And ANYONE is gonna have their lance enchanted to shit by that point so their lance will probably be acting like 3 size categories bigger for damage so its even more obscene. Your challenge bonus alone nets you 120 damage off the bat, you're gonna massive damage EVERYTHING.
Ley-Line Guardian Witch. A spontaneous casting witch... I don't really need to say anything else
Spell-Warrior Skald. Really competes very closely with the regular skald in my opinion. Have access to damn near every spell or be really good at counter-spelling? depends on how saturated the campaign is with spellcasters I suppose and with our usual GM we're lucky if we fight two so standard wins, I do really like Skald though.
Inspired Blade Swashbuckler. Locked into using rapiers but hey that's the flavor of the class already and boy do they get good with them. I played one briefly around level... 9 I think it was and his damage was fantastic. If it wasn't an undead campaign I would have been getting massive damage all the time but he didn't last long because his biggest weakness was his will saves and he got dominated.... dealt massive damage to the party then got blown up *sigh* he was a great build too. INT and CHA to panache pool, can simply decide that this hit is a critical threat regardless of the roll, how is that not great?