Xenomorphs would win because even thouh the klowns have wepons [such as the cotten candy ray gun and the asid pies] if you seen the movie, xenomorphs is powerful but the problom is that alien whould never guess the klown's weak spot (the nose)
(in my opinion) Glich trap would win because if Godzilla used any of his powers, it would not do anything because glich trap is a unkillable vires which would make god zilla glich out [maybe]