The only buddy I hunt with is my wife. I had the same experience with all of the other guys I hunted with over the years, and for what it's worth, doubling on deer from the same spot is just impractical. Sure, I don't mind having a hunting buddy on another patch some distance away, but no, I don't want anyone in the blind with me (my wife excluded).
I do indeed enjoy getting to watch my wife hunt, so when we're together, she's hunting and I'm secondary. I get a lot more days afield by myself to hunt alone when I want to "hunt".
I HAVE hunted with other guys that I thought were really good hunters, quiet, patient, vigilant, etc... Then I have to ask myself, if the other guys I take are usually annoying to me, am I the one that's annoying to this guy? haha!!! That may not have been the case, but I'd sure feel bad if it was!