Anything to do with Harry Potter, Lord of the Rings, even animated characters.
Mine would probably be Legolas/Orlando Bloom, the Weasley Twins/James and Oliver Phelps, Prince Caspian/Ben Barnes and Peeta from the Hunger Games.
So what's yours?
Would Margo Roth Spiegelman be considered a geeky/nerdy crush? If not, then Luna Lovegood :D
Mine would be Captain Jack Sparrow, if that's geeky enough XD
The Tenth Doctor. He's like twice my age but I still love him. Oh and Draco Malfoy. Not the JK Rowling Malfoy, but the Draco Trilogy fan fic Malfoy hahaha. <33
i would undoubtly have to agree with you on the Zuko part :D
...and maybe Aang when he had the hair..? hmmm... =P
Let's see...Neville Longbottom, Aragorn, Charlie Pace (from Lost), and Desmond Hume (also from Lost). :-)
Charlie Pace...Yes!!! And I'd never thought about it 'til now, but yeah..I definitely strangely have a crush on Desmond!! :P
Sheldon Cooper for me as well. :)