Having not used the Butler Creek caps, I can't compare these to them. But I can say these are easy to get on, easy to change the lenses, and easy to use. Plus they survived their first hunting season with absolutely no problems, which makes them worth it in my book.
Pros: Easy, Yellow lense is useful
Cons: Release catch doesn't seem well made
This review was written in the old system and had content requirements that are different than reviews written today.