I prefer Muzzy myself... That's all I use.
I don't think mechanical broadheads are more beneficial in any way so I agree with Rozman62 when he say's stick with Fixed broadheads. Keep this in mind, ANY broadhead you use has the ability to kill what you're shooting at.. whether it's deer or bear or any other game you're after. SO,,,, as long as you're shooting accurately with what you're using, they're all going to do the job well...
Democracy is two wolves and a lamb voting on what to have for lunch.
Liberty is a well-armed lamb contesting the outcome of the vote.