Broly stomps.
Base Gogeta was no less than equal to SSB Goku(arguably stronger given how easily he slapped away a few of Broly's blasts, but I digress.) Either way, that puts SSJ Gogeta at no less than 50x SSB Goku.
SSJ Broly was stalemating SSJ Gogeta, so that means he was at least 50x SSB Goku as well... Which makes sense considering that Ikari Broly ~ SSB Goku, and SSJ would be a 50x multiplier on top of Ikari.