Well if you look on the address on both packages they are both the same company. I have found the Rage'sto be extremely sharp (not to say others haven't found dull ones). We sold probably 100+ packs of them at the shop this year and had some awesome results.
I personally shot 3x deer with them and I have never seen such devastating entrance holes from an expandable head. I used the 2 blades. The snypers have a little less cutting diameter but do have a better blade retention system IMHO, they have a band that goes around the blade. The Rages use a band at the base of the blade that if you are not careful can open. I primarily treestand hunt so it wasn't a problem, but I may supply my own bands around the blades next year on the Rages to keep them closed just in case.
I know most of you have seen this, but this was the first deer I shot with the Rages this year. This was a 43 yard quartering away passthrough that took out multiple ribs, had almost a 6" entrance hole (because of quartering angle) and it nearly sliced the heart in half. The best thing about these heads is that they penetrate MUCH better than I have seen on other massive expandables. As you can imagine he didn't go far. On the other 2x I shot at deer, one went 50 yards, one went less than 10. Both had blood trails a blind man could have followed.