Reese's pieces wins, although I like M&M's and the peanut M&Ms very much.

Also, I would say that 1 in about 12 times I say reesey's because I CAN. Because sometimes it gets boring to say the same word the same way over and over again. Just like instead of saying please I'll sometimes say peas. Or instead of saying pajamas I'll say pyjammies. That one I do way more often because pajamas is just such a boring word. And bananies.