Several people I know use the Heritage 22 with the adjustable fire sights. They report good things accuracy wise. If you are looking at the fixed blade versions just be prepared to try lots of ammo to find one to shoot POA or to do filing, bending etc. on the front sight to not have to kentucky windage. Once you find a good ammo with fixed sights you pretty much have to stick to it. I only buy adjustable personally, because I like to play with new styles and test different rounds. I also like using shorts at times for training of kids and plinking.
Ruger single six is rated much higher by comparison, but you do pay for it. I chose to get the Ruger Blackhawk over the Heritage rough rider, but if budget is a consideration, the latter is certainly rated well by the shooters I know. Keep in mind too that there are a lot more modification parts for the Rugers than the others. They are pretty much what you get is all you'll ever get.
