In that case you are a heavy favorite (on the order of 54% -- depending on suits and the like). But remember that AK is only the best drawing hand - you still have to draw the rest of the cards. Against a pair you are still behind (say 55-45 against a middle pair -- the light side of the coin) and only a 65-35 favorite over 2 live cards, or even worse over two suited connectors. People put way too much value on AKo.