Hoechlin. He's got a mix of my favorite aspects of Dean Cain, George Reeves, Chris Reeve, the animated series and the comics version. His Clark's not a caricature (my main issue with the Reeve version) - he's got that regular joe aspect who's a bit of a dork for real, but also still confident, still a bit alpha, still a respected reporter, and his Superman's got warmth, humility and easy-going confidence, never comes across like he's posing or trying to project authority (my main issue with Cain's Supes side), comes across as a natural mentor whenever he's handing out advice to other heroes, while his inner dork still shines through on the regular. It's a damn near perfect mix to me.