RE: best broadheads...?
The only way this question could have been worse was if you asked what the best bow is.
To answer (or attempt to), I will start by saying this is a very opinion based question and opinions are like butt holes, we all have one and they all stink.
With that being said, I shot Rages this year; the cutting diameter drew me in. I had no problems this year at all, in fact all the deer I killed with my bow (9) were all pass thrus with one exception. I still cannot explain why that one did not, but the fact is it did not blow thru and in fact the penetration was extremely poor.
I am going back to a fixed blade head this year, something with a cut-on-contact design. I am leaning towards the G5 Montecs, I like the one piece design and they are extremely sharp. I also like the Slick Tricks as well as the Shuttle T's.
What I suggest is, shoot a few different broadheads and find one that you have the most confidence in. Then you would have found the best broadhead for you.