Best file format for embedded color data into 3D surfaces

I need to be able to import a polygonal mesh that has embedded color information into Rhino. Is the best file format for this OBJ, FBX or something else?

And after I import it, how do I easily see/ toggle the color data in Rhino? Shade?

I’m working in Autodesk’s Alias so any particular expertise with this would be greatly appreciated!
Thank you!

@Benjamin_Julian,

in case your mesh as embedded vertex colors, there is no built in command to toggle them in rhino 5. You might use the script posted here for that.

c.