The only advantage I would see for SE and WE over largemouth is the largemouth is more of a sight feeder vs. the other species and needs more light to feed. I've seen WE and Saugeyes in rivers that were so turbid I can't see how a bass would be able to see it's prey, hence one reason why those species were a dominant species in those rivers.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.