I've got and H&R and Bersa, had 22/45's and Phoenix Arms HP22s. I've also been searching for a so called kit gun for camping, canoeing, hiking, etc.
If you can afford them any of the S&W kit guns are the way to go.
The H&R's are better than the Heritage's but both are basically throw away guns. The H&R's due to lack of parts and factory service, the Heritages because that's all they are intended to be. Shoot em till they drop and move on.
The HP22s are not accurate and reliability is questionable. Sometimes I kick myself for selling the one I had because it did fill that role but there are better options which I know own.
The Bersa I have is a serviceable gun. SA trigger sucks, groups are around 4" @ 50' and mine only likes MiniMags. But they are far better than the HP22s and more than likely the H&Rs and Heritages but only time will tell. Ask me again in 20,000 rounds.
Never cared for the Bearcats. Hard for me to hit a barn with.
A 4" Ruger 22/45 or a 22/45 with an aluminum barrel is a good choice and the most accurate (or should I say easiest to shoot accurately?) of the list but it's also but the biggest. So there's a trade off.
Cheapest I can recommend: The H&R but only in VG condition.
Small Semi award goes to the Bersa.
Best for impromptu hunting and best value is the 22/45.
Best overall the S&W's.
LK