I actually really like Sonic Unleashed. (PS3 and 360 versions at least)
Only the day stages are good in that game, so only half the game is good
The night stages last considerably longer than the day stages, so only 10% of the game is good
There were a lot, I actually own both the PS3 and PS2 versions, PS2 has waaaaay more night, and only one day stage per world. PS3 had a better balance, it even made the Warehog bearable, with its attack system and actually being able to control when you run and junk.
Even if the day stages are shorter I think it still over powers how mediocre the the night stages were because you can keep replaying them. After beating the game I still went back to play the day stages all the time.
The Werehog combat was less terrible and more just meh and went on too long.