IMO Muzzy is the best out there for fixed blade. they fly great they are very strong i have never broke one. you can replace the blades after the shot, and they penatrate like crazy.

for mechanicals i would say ulmer edge are the best for sure. they are sharpend on opposite sides on both ends so they cut on a spyral going in and out. they penatrate surprisingly well for mechanical, and are very strong, also the blades pivot around bones so your arrow is not slowed down and penatrates very well. (they will be in my quiver this hunting season)