The Great Fishing Dilemma rears its head again.
The unfortunate answer is that no boat is good at everything. And the answer is different for everyone.
Smaller rivers, or "mountain streams" with rapids and skinny water, nothing beats a driftboat. While sleds can do the larger ones at higher levels, they have big limitations, and the ones suitable for a broader range of river levels have little-to-no vee, which makes them less stable in the big choppy water.
In the northern reaches of the state, many anglers like to fish the Willamette and Columbia. Flat bottom sleds work, but get bounced around a bit (not so much on the Willy, the Creek gets all kinds of choppy). On the big water, the bigger and deeper the boat, the better -- but those don't do any sort of small water (and the bigger the boat, the tougher smaller launches get to use). A 6-10 horse on a driftboat works (generally isn't much difference in top speed between those sizes on a DB), but these's all kinds of limitations: as mentioned, they're slow. Most drift boats are lucky to see more than about 6-7 MPH, which means you're not fishing too far from the ramp (and ramps are few and far between on the Columbia, and to an extent, the Willy). They're also flat bottom to the extreme, and are a handful in choppy windy conditions (good luck trolling in those conditions).
Casting Call has a compromise with the inflatable, and the inflatable will do everything. But the compromises are great. A bit of an all-around comfort issue, you're getting wet, and in heavy chop, you'll take a beating. But as far as going anywhere, they pretty much rule. Fire right up through rapids that most sleds won't.
So, another vote for figuring out where you will be fishing most, and pick the most appropriate compromise. Everything in fishing boats is a compromise, from the basic boat design, to the motor, to the type of seats, to the storage boxes, and every last detail of everything.
Myself, I like to fish the smaller streams like the Clack. If I was buying a boat, I'd buy a driftboat... except my best fishing buddy has a nice DB with an electric, so maybe I'd buy something bigger. We have long range plans to fish the Willy a bit in OC or Milwaukie in it, but the compromise will be fishing near the ramps and may or may not be able to troll (probably depend on wind and how crowded it is -- bad form to take a boat that's hard to steer through the common trolling lanes). We've used it on the bays for crabbing and trolling, and it's OK, but a long way from ideal, and much better suited to the upper bays than near the jaws. On the other hand, it's a mean machine in upper tidewater, where no sleds can go.