is broly stronger than super perfect cell, yes and here is why
It is stated that gohan is a super saiyan 2 against broly, even if out of practice broly dominated gohan
His first defeat took goku+trunks+vegeta+piccolo+gohan (not super 2) all of whom were super saiyan and super namek. Not just that, it took the right punch in the right spot with a giant asteroid to defeat broly.
Now the second time it was a super saiyan 2, goten who was at at least the same level as freiza and goku to defeat broly.
now for super perfect cell
It took the power of 1 hurt super saiyan 2 to defeat him while being distracted by a relatively strong blast by vegeta. yamcha, krillin, chatzu, and tien all has minuscule power in comparison (maybe tien had more comparable power)
It took a lot more to defeat broly than it did to beat cell.
---------- Post added 2012-07-25 at 08:14 AM ----------