What is the strongest intermolecular force exhibited in each? Covalent molecules, Ionic compounds, polar covalent molecules.

Question

This is my answer:
Covalent- dipole-dipole forces
Ionic- ion-dipole forces
Polar Covalent- electrostatic forces

Is this correct?

Answer 1

I changed my answer to:
Covalent: London forces
Ionic: Ion-dipole
Polar Covalent: Dipole- Dipole

Are these correct?