Plutos gravity is strong enough to have made it round and it has mostly cleared its orbit (hard to clear an orbit that large that takes that much time to complete one circuit. Even Jupiter would have difficulty in 4 billion years.) That is the definition of planet so that makes it a planet. Dwarf planet is acceptable. Kuiper Belt Object is not.
Ceres, Eris and Makemake are not round and have not cleared their orbits in any significant way.
Plutos gravity is strong enough to have made it round and it has mostly cleared its orbit (hard to clear an orbit that large that takes that much time to complete one circuit. Even Jupiter would have difficulty in 4 billion years.) That is the definition of planet so that makes it a planet. Dwarf planet is acceptable. Kuiper Belt Object is not.
Ceres, Eris and Makemake are not round and have not cleared their orbits in any significant way.
Eris definitely appears round with all of our data available, just FYI.
But Pluto is definitely a dwarf planet for sure, not an asteroid or planetoid or whatever they want to call it on any given day.