I reckon he could outbox both...but its all speculation on how his body holds up against bigger guys..especially two classy operators who liked their fights physical.
I think his physique/style was perfect for middle and would feel uncomfortable picking to beat very good Light-heavys. But didn't Maxim start off as a middle?
I dont know...I thought he hovered above light heavy for most of his career..He was a solid 175 pounder for the day.