Im not really a political person but the one thing I do care about is pot. Which candidate is most supportive of federally legalizing or at least bumping down the schedule 4 drug status of pot.
Perhaps pot is the only issue you care about now, but a vote for anyone except Biden is functionally a vote for Trump, who will give you much bigger issues to worry about. So, the smart thing to do here is to vote Biden.
A vote for Stein or West is functionally equivalent to driving to the ballot box just to rip up your ballot and drive home.