Plenty of great advice here already so not sure I'm much help. I have slowly edited out all my motos over the past few years. My last moto was in ivory knit I edited at the start of the spring season. I just don't reach for them anymore so I decided to let them all go.
I like the fit of the burgundy best, and it's not a common moto jacket color so if you think there's a chance you'll enjoy wearing it again, then keep it. I also really like the cobalt, because cobalt is a great color on you and also hard to find. The more common colors I'd let go, because they'd be easy to repurchase again if you want to start wearing motos in the future.