If "hub/HUB" refers to the in-between area where you spend most of your time between objectives (i.e. Toad Town (PM), inside Princess Peach's Castle (SM64)),
BEST: Super Paper Mario. I dig the Flipside music, even if it, like SM64's castle music, gets overplayed in other remixes. (If this doesn't count, SM64)
WORST: Galaxy. Not sure really, some of the music in that game just doesn't fit the Mario mood...