in personality, steiner is almost definetly better because hes a main character and developed on more (im not being completely ignorant of beatrixes personality. i just like steiners more.) in battle steiner is more useful at the end because he gets all of beatrixes abilities apart from the white magic, but garnet and eiko are all the healing you'll need. and steiners magic sword is always useful.

i just like steiner more. he has some funny moments.