I don't have any experience with the other fridges but I got my Sanyo off of Craigslist for $50. It was about a half hour drive for me so it was very worth it. The build for the Sanyo was extremely easy. And I didn't really have to worry too much about where the refrigerant lines were as this was done a hundred times on this site (although I did the cornstarch test anyway).
Workers of the earth! I bring... good tidings of peanuts! And beer!