Neither of these two logos are very simple in design but offer unique colors and appropriate symbols for their teams. I like the teal but the Sharks logo does not make enough use of it. There's a thin line of it in the triangle surrounding the shark. Plus, there's a hockey stick so I don't exactly love it. Meanwhile, the Predators logo is very sharp despite its minute detail.
This is a tricky one. In most instances, a Shark is a Predator. In part for that reason, the Sharks will slide by with this point.
The Predators got their name from the remains of a saber-toothed tiger found by construction workers during the building of their arena. The Sharks don't have a story like that. All right, but I can't hold that against them. What I can say is that this outdated logo needs an update. And one is coming in just four days, as a matter of fact. Maybe it'll have a better chance then.