Out of a well tuned bow, ANY broadhead, with any number of blades will produce deadly results. I PERSONALLY, use the Muzzy Phantoms, I love the large solid construction and they are devastating when tuned properly. Now, I spend a great deal of time tuning my BH and arrows and this may be why they work so great, but when I throw any other BH on, they fly equally as well. Getting back to the original question, theoretically 4 blades would produce a better blood trail (due to having an additional cutting surface to cause hemorhaging), but in my personal experience I have not found this to be correct. I have had massive blood trails from 2 blade heads, and small hard to find trails from 4 blade heads.
great advantage to have four blades versus three yet you've to tune you bow with them to be able to shoot them properly at longer range say fourty yards they will and do fly different then a three blade have shot tons of broadheads in my twenty four years of bowhunting but I prefer to stick to three blades fixed blade of course had to many bad encounters with mechanical heads over the years wish you the best if you want to add cutting diameter look at the g5 magnum broadheads they are awesome
broadheads are all what a person likes to shoot any head put in the right spot will produce blood. a better way to pick a head is accuracy an tuneability rather then the neame of it or who endorces it. if i was going to shoot fixed it would be a slick trick razor trick they fly awsome are sharp an penetration is unreal. i prefer a mechanical head an shoot the 1 3/8 reaper there tough shoot like a field point an penetrate extremely well an do alot of damage. fet 3-4 of your buddies all pitch in an buy 2-3 different types of heads your interested in an test them an choose that way i think you will be happier
I always shot three blades but tried SlickTricks. They flew nice but I just preferred the three blade Thunderheads. I like to align the blades with the fletching. Most of the time it doesn't matter so far as tuning, but if I put them in the quiver so that the blades don't touch, neither will the fletching.