About Arwen's heritage: Not only does she have blood from the three elven races (Noldor, Vanyar, Sindar/Teleri (both)) and maia, she also has from all three houses of men: Bëor's house through Beren, Hador's house through Tuor and Haleth's house through Tuor's grandmother, Hareth. I actually calculated exactly how much it was from each, and I posted it somewhere in the ME Mirth forum.
