I just sent a pair of Wasatch's back to Vasque because of a hole in the front where the black rubber meets the leather on the toe area. Didnt even get a full season out of them, we'll see how good their customer service is
IME, Vasque's customer service is absolutely top notch.
As to the Bitteroot's, no idea what differentiates them from the Wasatch. I have the Wasatch, and while it's not a "perfect" boot, it fits me well and is comfortable. How the OP's feet like them is another matter.
Another Vasque boot I own is the Sundowner... I wear them every day for work and they're super-comfortable. If they had a small rubber rand I'd use the Sundowner's exclusively for all my summer backpacking.