RE: What flys better?
I shoot rocket arrowheads [link]http://www.rocketaerohead.com/rocket-aeroheads.html[/link]. Been shooting them since they came out years ago. I have recovered every deer I have shot with them. In my experience however I have noticed they work much better with a broadside shot. Not as well quartering away (or likely quartering to).
A few of my buddies have gone to the new G5's and they love them. I love my rockets, I shoot an 85gr field tip and an 76 grain mini blaster 3 blade, I add a washer for 80 grains. They just plan fly exactly like my field tips out to 70 yards on the range (I'd never shoot an animal farther than 40). Whatever you shoot you need confidence in what you are shooting. Try a few different ones and see what works best for your set up.