The reason most people here are saying that CZ is a better rifle overall is because they own one, and cant own an AK.
CZ is a decent rifle compared to a lot of things, but next to a high quality AK (Valmet.. Galil.. etc) its a piece of JUNK.
AK's have a reputation for having poor accuracy. This reputation comes from people shooting 50 year old beat up, rusted to s**t AK's manufactured in Africa from salvaged tractor parts. New, high quality AK will shoot more accurately than a new CZ 10 times out of 10. Dont believe me? If you're in GTA, i will take a "Pepsi Challange" , my Valmet against your CZ anytime. Dont forget to bring some money to bet.
So to answer the original question,
1) Accuracy - AK
2) Reliability - AK (never heard of an AK malfunction that was not caused by bad ammo or complete lack of maintenance.. for 50 years)
3) Maintenance - AK (requires less of it, and is easier to do when needed)
4) Scope mounting - Tie. Both can accomodate a scope.