Each had their benefit and Ive killed w/ both. It mostly comes down to shot placement, but some Fixed blades work better when you have poor shot placement (cut through bone better). Also you dont have to worry bout them not opening. I noticed some mechs start to rust after a few weeks of carrying in the weather, so i switched back to fixed this year...didnt want to take any chances. Also im going to be hunting bear so i wanted the extra strength and penetration.