I donated to her. I've never donated to a politician before at any level. She's the best candidate to me. If Bernie gets the nomination instead, I'll vote for him. If it's really anyone else, I'll probably write-in or vote for a third-party.
Only vote for a third candidate if you are okay with the Dem or Trump winning and you don't want your vote to count. If that is the case than thats fine too.
Just don't complain when the dem or Trump wins. You willingly chose to not be counted and that is your right.