What are your most favorite violin concerti?

Beethoven's my favorite.  I think of it as a wonderful piece of music that happens to be a conocerto.
A couple of "near-concerto" offerings worth mentioning: Mozart’s Sinfonia Concertante (violin and viola) and Vaughan Williams’ "The Lark Ascending"
Glad to see a mention of the Korngold--some good stuff in that one. Sounds a bit like a Star Trek movie soundtrack at this point, but that’s hardly his fault.