Mechanics: 4.5 I'm the kind of player who loves crunch. Hell my favorite "class" in TTRPGS period is Junker from Hell On Earth. DAT MATH AND CHARTS AND DRAWING HNGGGGGGGGGGGG. Unfortunately i'm a spell caster at heart. I can make a mean combo for any class/concept but I always have to fall back to the Witch or Goblin Pyromaniac Alchemist Bomber... The characters I have always looked at for "I wish I could do that" have always been people like Khadgar, Gandalf, Diablo 2 Necro and Gandalf, even though they are all a#$@$%~s (though khadgars a pretty shit wizard)
lore: 2.5? I own the Inner sea book, also have skimmed races of golarion
role play experience Pathfinder: 1-2 I heard about pathfinder when It first came out, ignored it for the most part 'cause my groups were doing a 3.0 game already where I was using the Diablo 2 Necro and the other game was Deadlands. Picked it up after release of Inner Sea, Advance Class, Race books. Found the Goblin Alchemists, Goblin Comics and Witch class. Fell in love with Gobbys and Witch. Kinda like Changelings as well (More 'cause of my love for WoD though). Seriously love Gobbys though, if I were to run this so my DM could take a break id just make the campaign's main enemies Goblins.
3rd party: Are we talking D20 3rd party or just non pathfinder stuff? Cause if so 1. I've download a Lamia book and a Witch.
If were talking any non PF 5 ez. I own over 40 different corebook systems ranging from Anima, to demon hunters, to Changeling: The Lost/Werewolf: The Apocalypse. My GM and I are in a "competition" for who has the most RPG books/Obscure. He beats me atm though because he has the TMNT and Ghostbuster RPGs.
adventure path: 0 GMs the kinda person to do his own thing unless its Deadlands. I feel the same.
overall level: 9 aprox
I mostly stalk the Reddit for PF, I do the same for 5th, Malifaux and Wod but will glance at all of their forums.
I'm not a fan of PVP but notice that a fair number of DMs like using stuff like Confusion and Dominate Person to encourage the PCs to fight each other. This can be a tough situation since a lot of PCs focus heavily on offense, and suffering an unexpected attack from them can be deadly.
In one game my girlfriend and I have often discussed how to survive an attack from the greatly invisible, swift feinting, claw pouncing Ninja with a Will save of +6. It is the sort of situation which can come up pretty easily if the DM wants.
My group is probably going to rip off 7th Seas system for this kind of thing. Basically it's Player A in order to influence player B must offer a Hero point, if player b declines the point then Player A can keep his point and can not force B to do anything. If b takes the point he does what A wants. Of course it doesn't work for suicidal actions but its nice for when a players like "I roll diplomacy/dominate to convince you to give me 70% of the cut".