I finished Xenoblade Chronicles on Wii recently! They say the average is like 50 to 70 hours, it took me like 120 and that wasn't even doing all the side quests (>_<)
That was by far my longest game! I really like Wii RPGs like Pandora's Tower and The Last Story (plz play them if you never have, you can thank me later :^P) but I knew this was a long game going into it so I wanted to commit to seeing it through.
My favourite part was... Alvis' voice acting

Listen to this accent!!!!!!
But honestly, was it worth the 120 hours...? Probably not. I found the ending to be really stupid and disappointing even though I wanted to enjoy it. (Plz don't hate me for this

) I think I'd rank The Last Story above it, that game was just so fun lol. Still, I'm glad to be able to check the game off my list at last!