From the OP pic, wade, for obvious reasons..
95% of my fishing is wading. I have never stepped foot in a drift boat in my life. I do enjoy running a river in a kayak and fishing that way, though it's mostly smallie fishing. It's a great way to cover water. The biggest of the big trout streams I fish are on the order of Penns, LJR, Tionesta, Oil, Pine sized. They are big enough to float. But in prime trout season, too crowded, it's more hassle than it's worth, you're just constantly trying not to **** people off too bad, going along shore behind them.
But on the Susquehanna, Big J, etc floating is just the best way to fish it, even if you island hop or get out and fish. And it's a fine way to do streams like Pine too, once summer comes and the crowds are gone.
One drawback of floating, yak or otherwise, is, the evening rise is tricky. I do not want to be boating well after dark, so you better be by the vehicle at the magic hour, and if you're stuck by the vehicle, why you got a boat at all?