I have had the great good fortune to fish almost every area in B.C. and to fish many several times. Each has their allure and downsides. Langara Island and the west side of the charlottes can provide phenomenal fishing. I have had day there that ear almost unbelievable. But in 12 trips to Langara and the west side , I would rate two as simply amazing six as excellent two as poor and two as absolute busts. There are simply no guarantees, anywhere. The down side to all open west side waters can be big rough seas. In fact big seas are the rule, not the exception in the Charlottes.
Northern coast, Dudes Island, Work Channel can be great, but again, you have to be there when the fish are.
All the west side of Vancouver Island can provide fine fishing, my favorites would de be Kyukuot and Nootka is a fine destination.
The mainland coast around Dundas Island and Work Channel often fishes well for big springs and coho. Rivers Inlet has often phenomenal coho fishing as well as the famous big springs.
As my mentor Rikk Taylor loved to say “Every lodge in B.C. has great fishing at least two weeks a year. The trick is being there when it happens.”
The east side of Vancouver Island IMHO is a mere shadow of its former glory. I have fished Campbell River many times from 1975 until last year and the runs there have steadily declined.

I don’t know much about Port Hardy but have heard good things about their big hook nosed coho.
I guess the bottom line is you need to decide how much you can spend, do you s deal with big water well, what species you want and if you want to be guided or not.
There are a ton of great choices. It’s a dilemma I deal with every year. So many good places to fish so little time.