Agreed. Your addiction is also strong. Physically, you don't need it, but mentally you think you need it. The difference is not so huge!
With THC, there is no such fundamental change. With long term, heavy usage, THC can build up in certain portions of the brain affecting short term memory and cognative functions. Cessation of usage and time clean out this build up.
Alcohol destroys portions of the brain via swelling of the tissues due to displacement of water with alcohol. This swelling is where the hang-over comes from.
From a purely physiological stand point, dope is definately better for recreational usage than tobacco or alcohol.