This thread could get real nasty in a hurry with some of these comments! To each their own is what I say. If you like it and it works for you stay with it until you want something new or are disappointed with your current head.
I personally like cut on contact heads. I have shot Thunderheads for about eight years. They haven't let me down yet. I place the shot well they will do their job!
No matter what head you shoot if you hit the deer bad, it will not be easy to recover!
Good luck to everyone, no matter what head you shoot.