Indeed, can you consider that Live casinos is have an advantage over online casinos?
I think online casino has advantage over live casino because you can play multi tables at the same time. I know few people who are earning extra bucks this way.
At that moment while watching him playing I think it is very easy to identify your opponent's faces and defeat than in online gambling casinos.
Watching someones opponents is one thing, try to play against people and you will see that it is not that easy to know when someone is bluffing.