Burris Xtreme Rings
I really like the burris xtreme rings, they are on midway usa for app. $50 for the set, they are as strong as can be.
I got these from a smith that does a lot of business on this site, he recommended them (and built my rifle that uses them). He was/is spot on, these are super. The only complaint that I can see someone having would be that they are very big, if you use them on a scope without a lot of scope tube, or eye relief, that could be an issue (you might have to crawl up the stock to look through the scope if that was the case). I am using these with a 4.5x14x50 Ziess, and they work great/no issue.
That being said, if you wanted to go with a smaller profile, the Seekins rings are out of sight quality wise, I am using a pic rail from Glenn, and the machining of the rail is perfect (and I mean that - perfect), I am sure if I had used his rings they would have worked just as well. Plus, Glenn is a great guy to do business with, very personable, he took 30 minutes of his time over two separate phone calls to address my custom action requirements, that is customer service no one could find fault with.
My 2 cents.