I think when you are sitting the fence on a decision like this it's important to consider extraneous factors like the buy-in compared to your bankroll, how much edge you have over the other players at the table, etc. Then sometimes you can figure out whether you should fold and try to make third or second or whether you should take a risk to double up and start applying pressure to the small stacks yourself. Then you would have a better chance at first place, especially against Donkzilla with the big stack. There's always so much to think about with these decisions...