Question: is lssj stronger than ssjb?
Answer: So the normal Super Saiyan God mode is more powerful than Legendary Super Saiyan and Super Saiyan Blue is much more powerful than that. But, LSSJ Broly has other dangerous forms as well. And if due to some reasons Broly acquires the Legendary Super Saiyan God mode, then even SSJGSS Goku cannot defeat him.