Own all three they have there merits
-vz because it takes 7.62x39, somewhat modular. Ak reliability, with milled quality better then many ak stamped actions.
-Swiss arms built like a Swiss watch everything is quality, best iron sites hands down on any service rifle, proven design and quality, reliable, accurate.
-tavor because it's very short in length with out sacrificing barrel length. Economic high quality construction. Ak reliability, battle proven, light weight. Modular and much aftermarket support that is only growing.