What bow are you using,how fast is it, and what how long are your arrows or if you know the grain off hand?
You are going to hear 100 different responses to this but I really like a lot of things about the Magnus Stinger. Lifetime replacement warranty for any reason. Cut on contact. Sharp right out the package. Reasonably price. Very thick and very strong blades. Spin tested. They fly great (as any BH will out of a well tuned bow) http://www.magnusbroadheads.com/stinger.html
Any head on the market right now will do the desired job when put in the desired location. But hey, we all like to try new things right? I have shot thunderheads, muzzys, razor tricks, stingers and this year I went back to the Magnus Buzzcuts. A tough, sharp, and extremely great penetrating head. I always like to try new things but usually end up back to the tried and true which are the buzzcuts for me.
Your over all arrow weight if you are using the ht-2 350's is about 350gr with a 100 gr tip and at 275 your KE is at about 59. I would use a cut on contact blade for that setup like the Magnus.
This link is also a good reference. It's beginning to become a little bit outdated but still has mostly current models. http://www.american-hunter.com/broadheads/broadhead_test.htm
Take a look at New Archery Products. They make a variety of broadheads including fixed blades, expandables, and the hybrid Bloodrunner. They used a patented process on their blades to make them extremely sharp (sharper than most other heads on the market if you look under a microscope). I've been using them for the past 7 seasons with great success. Personally, I like a cut-on-contact head like the HellRazor or the new Thunderhead Razor. However, I've shot several deer with the Spitfire MaXX expandable and had great luck with that as well. www.newarchery.com
All the questions asked back to you and not one person got the most important question; -What are you using them for? It's about using the right tool for the job. I'd shoot just about anything on the market at deer but my choices become more narrow depending on where and what I'm hunting. NAP Spitfire 125gr. out in the open tundra for caribou. G5 Striker 125gr. for everything else in N. America. Alaskan Bowhunting Supply Ashby Nanook 315gr. for water and/or cape buffalo.