Is rasberry pi more secure for running an offline myetherwallet?

[grampajack]

I had this nutty idea the other day to use a rasberry pi to run an offline myetherwallet. I'm wondering if the native os that it uses would be less likely to get infected with spyware.

Also, what is the risk of infecting an offline wallet with a usb stick? Other than using a fresh usb stick every time, what are some ways I can mitigate that risk? Can I somehow nuke the usb before using it again?