Godard's influence has been largely negative - encouraging too many novice directors to dispense with any coherence.  Truffaut made much better films - Les 400 Coups, Jules et Jim, Shoot the Piano Player, and two or three others.  Truffaut sold out (a common problem for '60s directors), but no can look at Les 400 Coups and not see it as one of the great films for the ages.  My vote: Truffaut!