There are lots of good places, but most have positives and negatives. Boise and the Treasure Valley are close to good fishing and have mild winters, but hot summers. Baker City, where I live has a lots of great fishing round, except no Deschutes or Yakima close by and can have cold, but not Montana long winters. The summers are about 10 degrees cooler than Boise, Walla Walla or the Tricities.
Too me, Bend has grown too fast and although I love that part of Oregon it seems really crowded to me. How close to salt water, do you need to be? Do you mind dealing with some snow. What kind of shopping? How big of a town? What kind of cultural and outdoor activities do you enjoy? How much do you want to spend on a house? Country living?
Boise is kind of on the banana belt, you do get the 4 seasons and the winters are short lived. Outside of a couple weeks during late July or early August when the temps hover around triple digits, the weather from mid-March through late October is pretty darn nice...