I smoke weed. I prefer it to alcohol (not to take anything away from my taste for alcohol). However, I feel pretty strongly that weed needs to stay illegal until certain methods are created to test whether a person is currently high or not. Marijuana affects reaction time and judgement, just like alcohol. But unlike alcohol, tests can only determine if you have smoked weed within the past few weeks/month etc. I dont want to be kept from driving just because I smoke (please god dont let it come to that), but I also know there are risks involved in operating a 4000 pound hunk of metal with slow reaction time and poor judgement.
Just my two cents.