Based on my personal experience, alcohol is much more dangerous than pot. I've had one family member die from alcohol abuse, and another is well on the way. I have seen people "graduate" from alcohol to hard drugs, but not from pot to hard drugs.
In my experience, smoking pot makes you mellow and possibly temporarily a bit stupid, whereas drunken people can be anything from jolly to overly sentimental to verbally agressive, spiteful, or even violent.
I myself will never have a relaxed relationship to alcohol, as I always feel I have to be on guard for myself and others when drinking is going on, but smoking pot is harmless fun to me, even though I don't do it often.
Strange but true personal facts about me: I haven't been really drunk since 1991. I love listening to childrens' songs (and wetting myself laughing) while stoned. I wear an "infidelity ring", which I have discovered works nicely as an alcohol test: as long as I can assemble it, I'm okay - once I forget how to do it, I've had enough.
Above all: Don't lose your head. Be safe!