For me, it's P4K. I already have a great photo camera, plus lenses for it, plus three speed lights for it, plus radios and strobes. No need to completely start from scratch with another system that I may or may not like. I already shoot with Ursa Mini Pro, Micro and Pocket. An easy choice. If money were no object, maybe I'd buy both, but considering all the money you'd also have to spend on the Fuji system it isn't worth it to me if you already have a still photo system that works well.