Many years ago (I'm talking, like, 40 years ago here) my grandfather made a fricasee using the frozen Pell's rabbit from the supermarket & it was delicious. Pell's is the only supermarket supplier of rabbit I've ever seen anywhere.
It's unfortunate that my husband won't eat it, because we have an organic farm right around the corner that raises free-range bison, chickens, turkeys, goat, pork, & rabbit - & sells it all both fresh & frozen right off the farm. They also supply local restaurants & sell at a number of farmers' markets in the DC area (www.cibolafarms.com)
But again - the Pell's product is good, but that also probably very much depends on how it's been stored & how long it's been stored.