I've got several pair. Honestly, for outdoor shooting, I don't see much of a difference. The Howard Leight on Amazon for $35-$50 are usually the first ones I reach for. They're kinda slim, which can help not obstruct the cheek weld on some rifles.
I recently got some "quads" on CDNN in about the same price range. They have front and rear microphones so you can tell sound front to back as well as left to right. Might be helpful for hunting.