I've heard apples are much stronger than coffee.... and so better to take them along for a nitro boost?
I thought you're talking about the GMAT version of Gears of War for XBOX
Anyway, the fructose in apples is quickly digested thus giving you a temporary surge of energy and alertness. After that, usually 5-10 minutes, you'll be pooped.
If I were you I'll eat some fish or chicken nuggets. That's a light protein without any energy side effects.