I admit, I watch this show, primarily because me wife enjoys it.
This season was the first in a while that I actually liked one of the performers, and IMO she got robbed in the finals.
Crystal Bowersox is just a tremendous performer, with such a strong voice. How Lee won is beyond me (although I know it's because the 14 year old girl vote goes a long LONG way).
Okay season, okay finals, but could they get any more old people to perform? I liked the Alice Cooper appearance, and the Hall and Oates, but the rest? Most of them looked like they were ready for the retirement home. Joe Cocker looked like he was about to crap himself (not that it's unusual for him), Christine Aguillera had an old lady hairdo, Janet looked horrible, and Michael McDonald made me remember how much I used to hate him.
At least Alanis Morrisette looked like the same old Alanis. Too bad she was outsung on her own song.
I could have done without all the Simon fellatio, but at least we won't have him around next season.
I wouldn't really consider the bit about them being in a mental instituion to be a LOST homage (especially since Buffy did a full episode with that exact motif first), but when Hodgeman said Greendale was purgatory, I'd considered that a reference.