Rapala Glidin' Rap is my favorite Pike lure. Any of the two sizes work great. If you're going after Pike in the 18"-30" range, use a #12. I going for Pike bigger than 30", use a #15. And any color works great.
THE ART OF TROLLING SKIRTED LURES by Peter Pakula - Trolling skirted lures through the ocean in search of pelagic fish ranging from small tuna to Godzilla sized marlin is easier in essence than just about any other form of fishing.