Purple is on a huge high right now but going back to a request I made in like... page 2 or something, I'd actually like a neon pink instead. Though purple does go with more of the newer sets like you said, I think Laser would look much nicer on pink.
Stormtrooper white would be great, though I'm not certain how well it'd sell considering beige is relatively similar and such an obvious choice for this particular project.