I choose pot.
I spent 4/20 like most any other day. I woke up, had some smoking time, did a bit of schoolwork, went to class, worked out, visited a friend in the hospital, smoked some more, cooked some food at a friend's house, and ate it. All in all, a fulfilling day. Better than sitting around all day watching TV while high.
Plus, pot didnt help to start World War II.