I think that this is very dependant on the situation.
Smoking pot makes people less intense, ones ability to see and hear are intensified, critical thinking is hampered, appetite is increased. Pain tolerance is increased. Pot is great for going on runs, enjoying long walks and other activities that would otherwise be insanely boring. Pot is not good for watching sporting events as you will have trouble focusing and or caring about the action.
Alcohal is poison. The is no question about it. As humans we like being poisioned to the point that we are hampered but not killed. Alcohal depresses inhibitions, for that reason it is a great drug for social situations that one would otherwise not be comfortable in.
It's a push. If people would switch to edibles thc would win in a landslide.