RE: "Flavored" beers
I tried the Bud Light Lime this weekend & IMO I thought it was good. Its not exactly a beer that you would drink with a steak, but I had just finished about 3.5 hours of yard work in 90 degree heat & had two with four steamed dogs at the house. I think in that venue the BL Lime works. It also works well as a marinade base for grilled shrimp. A crime to some...but it works.
I am a big fan of the Christmas brews, especially the Harpoon Winter Warmer. It has a very nice blend of nutmeg & other spices that I enjoy with a slice of lemon thrown in.
Correct me if I am wrong, but a Shandy I think is referred to as a "Larger Top" in the UK. I could be wrong on that, but I remember (barely) them tasting very good when I was in the UK the summer after college...but that goes back 20+ years.
The Wachusett blueberry is very good as mentioned earlier...I find that it goes well with BBQ chicken.
I truly love most beer/ale/brown/stouts and adding flavor is just a metter of taste.