Even though the end is clear [Morpheus doesn't write stories where the bad guys win], it's always a pleasure to see how he works his way to that result. The specifics of victory are never clear in advance, that's always a surprise, but it also is always something that is consistent with the information we have been provided with previously.

He always starts with an off-the-wall initial premise, and then treats it as if it were completely rational in regard to how everything follows from that initial premise. Everything hangs together within the structure of rules governing how things work in the reality he creates.

He's really good at character development. His characters don't remain static, they change and adapt to their circumatances, while remaining true to themselves. Their motivations are valid, given their individual worldviews. He doesn't write two-dimentsional characters, not even his villains; you may not like them, you may think they are slime incarnate, but given their underlying beliefs their actions do make sense.

He writes very well.