What is your favorite TTRPG and why?
After seeing your answer, I supposed I should write a one to match. I have played so many different ones, I simply no cannot being myself to name just one. This to say nothing on system I have made or am working on.
Also, I will reference your post quite a bit, so let me just link it [here]
My first love is pathfinder 1e, but from even from there two really cool variants
Sphere Finder
a PF 2e before PF 2e. This takes PF and add a some system of sphere and talents, from supplants published by Drop Dead Studios. Effectively getting to choose marshal or magic powers to mix and match with feats and class abilities. A lot of death while being simpler then base PF 1e. Especially as caster no long had a list of 20+ spells, rather a few abilities and ways to modify. Similarly, for marshals, they even got cool thing like inspiring shouts or cutting a whole in space to teleport. So there wasn't much of gap between caster or marshals
Perhaps still speak TTRPG expirance, but It is quite taxing on the GM, and it largely still has the issues you mentioned in your post. Still, I would REALLY like to play it again. Heck, I would probably run it if I could, that instead of my day job. Anyway, largely in the same vain is
3.P
Perhaps a term you have heard being around in time of D&D 3.5, as was used to describe any amalgamation of PF 1e and D&D 3.5e. My favourite way to play it was to use PF a base and add more reasonable 3.X (D&D 3.0~3.5) rule books, as well as from 3pp (third party published) suppleness for both. It's difficulty, a crown king of complexity, but it did and still dose made my brain go 'woooo'. I still have oh so many indexes and lists for it. I get immense satisfaction with crazy fancy builds that are still rules legal.
however, they aren't I play and run these days... on that honour goes to
Uncommon Words
A cool hack of Dudgeon World that is simpler than 5e while providing more options, interesting characters. In many ways it's what people you don't play TTRPGs thing 5e is. And since this a post about enable TTRPGS, this the last mention of 5e.
DW and pbta (pawed by apocalypse) games in general have this cool three outcomes system of: Yes and..., Yes but... and No and.... This keeps the action going, often one action crates opportunity or danger that will be to relent for then ext one. Specially the way I run combat, it's just a consent stream of "This tread approaches, what do you do?", "This allay is gander, what do you do?", "This enemy is exposed, what do you do?".
Similarly, rules little means you can improve a lot of stuff. You can make a monster on fly with a simple questioner, and by deciding they do any actions appropriate for their kind.
Still, unlike other rules lite system (for example 2d10), it does offer some rule. Some character builds and dice mechanics. This is just enough to have a solid base for a character.
It's by one means perfect. The HP and damage rolls are a bit of a jarring departure from typical PBTA fun. Singularly, I it makes you count individual coins, then it comes to wealth, and I must it's a rather annoying bit of bookkeeping. Really, in D&D, I would never have played arc hares because those systems made you track how many arrows you use. Luckily, DW has that ones solved in quite an elegant way
Honourable mentions
So that dose were the contenders for my favourite. However, I should at lest named drop a some other of very cool systems I played, Mutants and Master Minds 3e, Thirsty Sword Lesbians, Savages Worlds, Chronicles of Darkness, 2d10, Magical Burst and Blades in the dark