Use what you are using now or what you have experience andfaith in.
I personally think that the vast majority of broadheads on the market work, be it fixed or mechanical..
This is what I used last fall, 125 grain First Cut by Easton. A simple two blade old school broadhead.. What you see is the exit would and I was shooting down from upslope..
I have since switched broadheads to try something different and will be using the American Broad Head Buckmaster Sonics. Yes, I am a gear whore wannabebut with an old bow..