Both logos use a lot of detail and eye-catching elements, but face it, the Panthers is just so much cooler. It's hard to say who has the better colors, but I"m going have to give the Panthers the edge here.
The Panther is an endangered species and it is in the Capital where they write the laws to protect them.
As I've said, the Panthers is a very appropriate nickname for a team from Florida. Not that Capitals doesn't work for a team from Washington, D.C. Ultimately, we have to look at the colors and logo design. I'm giving the edge to the Panthers because of the Capitals' use of hockey sticks in the logo. They do add some nice symmetry but they're rather unnecessary.