RPGMemes

Here's my list:

• It scales very well from level 1-20. The math just works at all levels of play.
• 3 action rounds
• Encounter design and balancing is easy for the busy GM
• All of the classes are good, flavorful, and have interesting options
• Teamwork is highly encouraged through class and ability design
• Martial/Caster/Support balance
• Degrees of success/failure
• Easy, free access to the rules
• The ORC license
• https://pathbuilder2e.com/
• Pathfinder Society Organized play is well done and well supported by Paizo
• The rune system for magic weapons/armor

Two big things I love:

• Three action system: every "activity" (strike, stride, cast a spell, etc) has an action cost. On a standard turn, your character gets 3 actions to spend on those various activities. This obviates the need for DnD's rules about spending a whole turn running since you can just spend multiple actions striding.

• Keyword system: PF2e leans more onto standardized keywords and uses them appropriately. Everything (all actions, weapons, items, even statuses) has a set of traits that (usually) briefly explains how the thing acts. It allows for standardized templates for interactions between different elements of the game. This takes a HUGE burden off the GM during game play, esp for modules that weren't written to think about each other. All the examples I can think of would take several pages to explain, but you can look up some things on Easy Tools and see their traits.

Bonus thing I love: all the rules are openly published, leading to TONS of extra tools that just make the game easier to run. (That said you should buy a set of books to help the publishers after you've been converted).

Not OP but the top 3 for me are

1. Martial - Caster balance
2. 3 action economy
3. A much better framework for GMs

3 action economy for me, I also like that the rules are much clearer and more balanced to more play styles.

I think one of the biggest things, besides not being owned by WOTC, is that it doesn't have a million exceptions you have to remember.

D&D5e: Want to use your bonus action? Cool. Is it for a spell? Have you cast a spell this round? Is it a spell that's allowed to be cast even if you've cast a spell?

Pathfinder2e: Do you have enough actions to perform an action? OK, do it.

To me it feels meaningful in a way that the ludicrous numbers never did in previous versions. The expanded crit system makes degrees of success matter, and they do a great job of making you feel heroic; especially when you go back and fight underleveled enemies and crit on every attack. (Or, alternatively, when you roll a natural 20 and it just upgrades your crit fail to a regular fail. That's when you know it's time to run.)

I think the level scaling fits Golarion, since "becoming a god" is a semi realistic goal for someone to set for themselves :P

But people who want to play in grittier settings do use the proficiency without level rules, and from what I've seen all the major third party tools support that option. As a gm, It can be hard to balance for though! The +level to everything mostly serves to give your level 10 cleric a fighting chance on their stealth checks, and without that boost there are some actions some characters just can't perform.