I shoot at an indoor range here in Richmond that has about 200 weapons to choose from to rent for an hour. I had this same question last month, HK vs FNX. I rented the FNX Tactical 45 and then the HK MK23. FN had less recoil but not by much. The FN recoiled up and to the left and was harder to reaquire my target than the HK, which had a more predictable recoil. Could have been me, but that's never happened before. Accuracy went to the HK hands down. I think the recoil was freeking me out, but the HK was more accurate even when I slowed way down. For a clean sweep, the HK felt more comfortable too. Although I did prefer the way the FN looked over the MK23. I was disappointed because I really wanted an FNX 45 Tactical. I'll probably end up getting the HK USP 45 just because of the price. I rented that one at the end and was blown away at how similar the MK and the USP were. The USP costs several hundred less than the MK.