It's a Naval Aviation site, and if y'all want to only display Navy wings, I certainly agree that would be appropriate.
If you decide to display USAF and Army wings, then so be it. For the USAF pilot wings ("radiator wings" if you will), we've got slick wings, Senior Pilot wings with a star on top (signifying 7 years with wings), and Command Pilot wings with a star/wreath (signifying 15 years with wings).
I'll ask my Navigator buds if the 7 and 15 years also apply to their wings.
Those stars mean years in? I always thought they had something to do with quals or hours. Interesting.