Interesting that a lot of people are choosing Gamestop as the worst retailer of the year. As far as B&M stores go, GS had hands down the most deals out of the stores on the list. B2G1 free sales plus some excellent coupons kept me making purchases throughout the year in addition to the occasional worthwhile deal of the week. If used games aren't your thing, they still have plenty of price drops that take effect before many other stores.
Toys R Us had B2G1 on new games which was a great deal. I didn't partake in that sale in particular, but I did pick up a few clearance games at great prices. Wal-Mart, Circuit City, K-Mart, and Best Buy all had the random clearance title or price drop on something I was interested in, but FYE had only one game that I purchased the whole year. Granted I've been shopping almost exclusively for current gen games this year and used titles are not an issue for me, but last year around this time when Bioshock was quietly priced at $19.99 was the only time I bothered to go digging around in that place.