In my humble opinion, PCE > NES port of DD2. The reason being, the PCE port is just more capable. More colors, CD Quality music, intros and cut-scenes, etc. It's not that the NES port is bad, it's just that it's hamstrung by the physical limitations of the NES. Had the PCE port been butchered, like the game Golden Axe for example, then I'd agree the NES version wins hands down.