The Thousand Year Door is the most well-liked and praised out of the 5, so I say that one. (Though, I never actually played it and, to be honest, I don't really want to.)
I still need to play Thousand Year Door
Bowser Inside Story was awesome in my memories but i still need to revisit it
(I've tried to replay all my games during vacations but i didn't had the time..)
How would you feel if the forum was wiped? No, not like the one back on February where everything was archived, just everything on the forum gets deleted(posts, users, etc.).
Why am I asking you this? No reason, just feel curious to hear your thoughts.