What makes it your favorite? Do you want to play it? If so, what’s keeping you from doing it?
For me, it’s Burning Wheel.
I bought it purely based on aesthetics back in 2008ish, then got the supplements, then Gold, then Gold Revised, with the Codex, and the anthology…
I blame it for my weakness for chunky, digest-sized, hardcover RPGs. :P I also like the graphic design, I like the prose (even if it’s divisive), and it has both interesting lessons you can plug into other games (like “let it ride,” letting success or failure stand instead of making lots of little rolls) and arcane systems that pique my interest (like the Artha cycle, which makes roleplay, metacurrency, skill rolls, and advancement all intersect). I genuinely like reading it for its own sake.
I haven’t played it because… well, since it’s not D&D, that immediately makes it harder to get people interested, sadly. It’s also a bit daunting, given its reputation as a crunchy system. But I have a group of players interested in trying new things, and fewer other games calling for my attention, so hopefully I’ll get a chance soon. :)
Whoops. My bad. Well my top board game pick is Gloomhaven. I even bought it, and my friend bought the stickers and we were gonna play it but instead she just played it with a different group and I never got to play it, even though I payed for it, and not too long after we had a falling out and I find it hard to justify spending another $100 on it.