The term I would use for Sam Adams is "homogenized." They craft their beers to appeal to a wide audience, and most of their beers I've tried seem somehow bland, like they didn't want to go all the way and risk alienating some of their customers. I do realize that they have branched out and are releasing some more "extreme" styles for lack of a better word, but again most of those I try end up being decent examples, but nothing spectacular. I would never use language suggesting their beers "suck" but they rank toward the bottom on a list of my favorite craft breweries. I picked up their IPA Hop-ology box and found the Grumpy Monk and White Water to be excellent beers (in fact, the best examples I've ever had of blending Belgian styles with IPA), but everything else in the box was lackluster at best. Those two beers I would gladly buy, but neither are offered standalone outside the box. Nothing else by Boston Beer Co. has ever made me want to go out and buy more.
EDIT: I take it back, Whitewater IPA is offered standalone and my Bevmo carries it in 6-packs. I will be picking one of those up today.