There was a time I would have said Savage hands down.
The RAR 22 has such great reviews and is so cheap. If you want it because of your other Ruger guns it is hard to argue with you.
My 22lr bolt gun is by far the rifle I shoot the most. Probably close to 10 times as much as all my other rifles combined. I personally like the CZ, but it is more expensive. If you buy a used CZ 455 try to avoid early production. Some issues with barrel installation making them less accurate according to many. Still accurate, but less than 452s or the more recently produced 455s(says the internet consensus).