Yes. Quality of rings is very important. Fit and design is highly important for proper mounting of the scope. It is very important to have a scope base and scope rings that are properly inline to prevent scope binding, tube bending, etc. Although, ring lapping is a proper procedure for any scope ring setup.
But if you're asking if there's a difference between say Burris, Leupold, and Millett standard rings, then no, they're pretty much the same. What are you looking to scope?