I've had plenty of Military's, Paramilitary 2's, and several Benchmades. I carried a BM 690 for several years. I have one NIB 710 I don't carry.
With the economy-version 710, you get a 3.9" blade in a somewhat shorter handle, a good blade-steel in D2, and a good slicer 0.115" blade thickness.
The Military has a 4" blade, often found in S30V (cheaper versions), but has a blade-thickness of 0.141". It will not likely slice as well as the BenchMade due to the 23% thicker blade, but it will be more sturdy in a harder-use environment.
IIRC, Sal Glesser designed the Military Model to outfit a proposed son going into the military. He therefore designed a high-performance, light-weight folder designed for hard use.
So, between the two folders, it depends on what demands you might place on your carry folder.