I tried to cover all fronts, but there are always exceptions.
I'll use my own example to help you figure out what you might vote for.
I used to be an avid and regular user until I started having general paranoia and brain issues unrelated to the weed, so I stopped smoking. I also have a job that might be in jeopardy if I were ever to be tested (even though they don't test, at least that I know). However, I fully support legalization.
In my scenario, I will vote #3, since I personally don't smoke anymore.