How to determine an M&M champion

Sometimes whenever I eat M&Ms, I like to hold two M&Ms in between my fingers and squeeze as hard as I can until one M&M cracks, I eat the cracked one, and the one that didn't crack becomes the champion. Then I grab another M&M and force it to compete with the champion in this deadly game of M&M gladiators. I do this until I run out of M&Ms and when there is only one M&M left standing, I send a letter to Mars brand with the champion M&M in it with a note attached that reads: "please use this M&M for breeding purposes."