I'll list my favorites by category (with the "Honorable Mention" in italics)
Creatine - MuscleTech's CELL-TECH; BodyTech's Crea-Tech Extreme, Gaspari Nutrition's Size-On
Protein Powder - ON's 100% Whey Gold Standard; BodyTech's Whey Tech
RTDs - Nature's Best's IsoPure (regular and zero carb); IDS' New Whey, ABB's Pure Pro, Mass Recovery, Blue Thunder
Fat Burner - MuscleTech's Hydroxycut Hardcore; Nx-Care's Rev XP, MuscleTech's ThermoShred
NO Product - MuscleTech's Nano Vapor
Carb product - IDS WaxiMaize
Weight Gainer (when I used them) - ProLab's N-Large2; Ultimate Nutrition's Ultimae Whey Gainer