Oh yes, I finally figured out which lightsaber colour’s my least favourite: purple-white with shimmering rainbow colours ala Gantoris’ lightsaber from the Jedi Academy Trilogy. That thing’s too outrageous even for me.
Wait, what? There’s actually a rainbow lightsaber in Legends?
(EDIT: I googled it, but all I can find are pictures of a guy with a regular-looking purple lightsaber. I guess even the illustrators thought it was too crazy.)