Here's a 'literary review' of ME 3, with some interesting perspectives (he's happy with the game, unhappy with the ending):
Video Game Review: Mass Effect 3 | California Literary Review
Here's a review by someone who has played each game in the series, only once and likes the ending. (Although I think a major game choice and his ending choice seems to conflict.)
What’s Right With Mass Effect 3′s Ending | Rock, Paper, Shotgun