- brilliant
- lucky
- juggled like 50 interview processes at once
Only one you can do anything about.
Another is to ask for additional benefits in monetary value. IE if one company that provides parking/commuter/better health coverage benefits, ask for an additional $X per year to the companies that don't.
That also make it like you're trying to equalize total comp instead of asking for an arbitrary higher number.
You’re making the negotiating mistake of projecting onto counterparties. “I wouldn’t pull an offer except to an asshole” becomes, “My counterparty won’t withdraw the offer unless I’m an asshole.”
If you absolutely 100% need a job and can leave nothing to chance then you should probably not negotiate with only a single offer in hand.