Little Fish: I have gone to Vancouver Island for a week each of the last 5 years fishing the salt. I'm presuming you are also interested in saltwater fishing by your mention of Nootka & Barley. Here's my two cents worth: Don't bother with Cambell River. You can do every bit as good staying home at the same time fishing locally. If your boat can handle the open water, Barley or Nootka is great. If you need flat water for smaller boat, go to Nootka 5-minute run till fishing after the cruise to base lodge, caters to blue collar bring your own boat crowd, combined with realistic chance of catching 30 lb kings, go to Nootka. Been there 4-times & love it. I stay at Critter Cove (tie your boat up to your cabin, they have a website & the family run business is superbly hospitable) and the weeks you mentioned are prime time. Nootka is getting very popular now, about 65% American. Ya want an option "B" where the Canadians go? Port Renfrew at the SW tip of Vancouver Island. Two hours drive closer than any of your other options listed. Much more primitive although you can drive right to it. Awesome halibut fishing if you can run the one hour to Swiftsure, finish your day catching kings right along shore and the best crabbing I have ever seen. Want even more varity in your freezer? Run offshore & catch your fill of silvers & sockeye at the same time of year you listed. Put a pot out for 4 hours, you will have 8-10 keeper crabs no problem. Most of the accomodations there are tent or RV's, but is an old style fish camp without the frills.
If you want any more info, let me know, I will try to help.