Credit: Clockwise from top left: Kevin Winter/Getty Images; Frazer Harrison/Getty Images; Dimitrios Kambouris/Getty Images; Dave Hogan/Getty Images; Jason Merritt/Getty Images; Patrick McElhenney/FOX

If there’s one thing that makes a hot actor irresistible, it’s his smile. Smiles are what makes bad boys fun, nice guys warm, and shy dudes adorable. A smile from a normally brooding character (Sons of Anarchy’s Charlie Hunnam) catches us off guard and drives us wild, but sometimes a smile is all part of a guy’s charm.

Whether it’s a sly smirk (The Vampire DiariesIan Somerhalder); a playful, full-faced smile (Pretty Little LiarsKeegan Allen); or a toothy grin (BonesDavid Boreanaz), a good smile is the icing on a handsome cake. Some, like Pretty Little Liars star Ian Harding, use a good smile to show off their pearly whites, while others, like American Horror Story’s Dylan McDermott, woo us with their dimples.

What’s your favorite kind of smile? Is it bright, or more mischievous? Do you like a smile you can bring home to your mother, or does a more mysterious grin drive you wild? Stop drooling and cast your vote in this poll.