Sif:  Thor's hopelessly devoted GF back in Asgard and lover of
golden apples.  Cowgirl:  Hal Jordan's squeeze in the air force
(and co-prisoner of war) who shares Hal's love of flying.  Has a
reasonably mature attitude toward Carol Ferris, except when
Carol is assaulting her as Star Sapphire.  Advantage:  Thor -
Sif is literally a Godess.  And, in the movie, somehow the
sister of Stringer Bell.  (Cowgirl probably won't be in the
movie.  Thor can use trans-dimensionality to rationalize "second
girlfriends" to a mass audience.)