Good question.

But from what I've read, those three are all good. Each barrel is it's own "person" and will shoot well or very well. Probabley 99% of them shoot better than all factory barrels and all clean easier. I am quite sure none of those will be able to realistically claim they are always better than the next.

Maybe go with whomever has in stock what you want or go with a retailer who has served you well in the past, etc.

I really like my McGowen in .260AI. Tight chamber and getting almost .25" in initial load testing.