By the very mobile nature of my career I have been posted out east to areas where the only decent fly fishing was for bass, both largemouth and smallmouth. From my experience, largemouth were a HUGE disappointment! One, maybe two runs, then they just gave up the fight. Smallies on the other hand were awesome on a flyrod and are caught in the same structures you find trout (at least in rivers/streams).
That being said, I'd rather catch a Bow River bullet anyday (not to mention a drive over the divide to go after Steelhead
) and do not want them introduced into Alberta. Just my .02 cents worth