My favorite cake mix: Pillsbury Golden Butter Recipe! No need to add anything special; super moist & tasty just as prepared on box. Blows Betty Crocker and Duncan Hines outta the water! (And bonus- it's also usually the cheapest!
Pillsbury Moist Supreme Orangesicle Premium Cake Mix with matching frosting. I'm not much of a cake person, but I actually liked this cake and even the canned frosting which I also don't generally care for.