Gotta be Thompson river steelheads, They're over 20lbs and have more muscle than any other fish around here. Basically a Rainbow trout that spent a few years in the gym on steriods
Nothing like seeing them go airborn, they'll strip 100ft of line in the blink of an eye, I've been freight trained more than once by these guys.
Sturgeon are a blast too, but more for the sit around and BS type days, with the occasional couple hundred pound fish in between drinks
Sunfish, what a fighter and if you find the right spot you can fight them all day. I love yanking up croaker too! Ask my Dad and he will say its the time he fought the 5 foot dogfish for close to a half hour.