Matt Mercer is a gent that I've got a big crush on. He's clever and creative, which are two traits I absolutely adore. He's cute to and can do all sorts of voices (which isn't surprising considering he's a voice actor). Like many gamers I learned about Matt from his D&D podcast, Critical Role. This is a regular podcast that's recently ended. I've sit and listen to him and his crew play for hours (and I'm just a few episodes in).
In addition to the geek factor, I think he's just plain 'ol cute.