Surfer, its right up his ally. He doesn't need to eat, sleep, breath or take a shit. he can just span his pc while absorbing energy from around him.
Or maybe Thor, since he can just span energy blasts from his hammer and all he has to do is hold it up. His godly physic can keep him sustained for months.
Quasar also has unlimited source of power and just span quantum
energy at it. Only draw back is that he is human.
last would be superman as he could span HV