The stakes look very similar. Four years of Trump.
The boring moderate didn't cut it for your team last time. Tread carefully.
There are three major factors to consider. It is in your team's best interest to (1) nominate someone who generates broad-based enthusiasm. That's not Biden. Sanders is the best guy for that. (2) Rustbelt strength. Four of the top five (Sanders/Biden/Buttigieg/Warren) all have that, but Warren is probably somewhat weaker that area. (3) Ability to swing suburban independents. Buttigieg is your best shot there. Biden is okay here too, but he's so boring and sleepy. Sanders/Warren somewhat weaker.
Your best bet is Buttigieg. Second best bet is Sanders.
The good news for your team is that I think Sanders and Buttigieg are in good position to take this nomination. That's why I canceled my "Trump gets re-elected" bet. Things are shaping up poorly for Trump 2020, in my view. Of course, if Harris or Biden get the nomination then I will be betting on Trump to win re-election.