My goldfish. 23 grams of ferocity. His name is Otis and he rises to a Royal Wulff like no other fish. He broke my 10 wt Sage one day while I was swinging Intruders for him in my bathtub.
That was great.
Warm salt water fish are incredible fighters. Kingfish and Cuda's on light gear are a rush. Dorado, Tarpon,Tuna, Bones...................
I'm assuming that you mean BC.
Green QC salmon are wicked according to my bro who guided up there for 10 yrs.
It's to hard of a question to answer. It depends on the gear you are using (a 5 lb trout feels a lot stronger on a 4wt than a 6wt) and the water you are fishing. A Harrison Sockeye (which are unreal fighters. Throw away the meat sticks and use a fly rod for these fish) don't feel as strong as Fraser River Sockeye. The current adds to the fight.
I've caught 3 lb Bows in the mountains in PR that put most Interior 5 lb to shame.I've had a few trout spool me on one interio rlake in the 80's. That has never happened since.
Then there is the mighty Steelhead. One day I caught 2. One after another on my 4 wt in a tube while fishing for Cutthroat in a Fraser backwater. Holy crap what a fight.
I caught a large double digit Coho in the Vedder in Sept that went ballistic. Haven't had a strong Coho for awhile like that one. Springs are brutes. Certain strains of Rainbows are great fighters.
Pound for pound the best fighting fish for me usually means the last big one I caught.
A hot, chrome Squamish Chum on a fly rod is really hard to beat though.