Answer
Hydrogen bonding. $CH_{2}Cl_{2}$ in benzene is weaker than KCl in water, which is weaker than methanol in water.
Work Step by Step
The -OH groups on the methanol can hydrogen bond with the hydrogen from the water, making hydrogen bonding the principle solute-solvent interaction. Dispersion forces are weaker than ion-dipole forces which are weaker than hydrogen bonding, which is why the strength of the solute-solvent interactions are ranked as above.
