There are just too many dynamics in this position.
If the big stack is shoving, he's shoving cos he's the big stack, he probably has a very good hand anyways, but the fact is he's asking you all to put your entire stack in.
But you need to take into account effective stack sizes (The smallest stack in the hand is the effective stack), board texture (are their better/bigger draws out there that you haven't got? Is it a dry board?)
You shouldn't play it the same way every single time, otherwise people will know your game too well. If you're short stacked and you got the nuts or a great hand, then sure, shove, but if you have the stack to just C-bet etc, then do that.
Rule of thumb for beginners: If you want callers, bet small (1/4-1/3 pot, this gives them good odds
to call usually), if you want to induce folds then bet %70-%80 pot, even a pot sized bet. By doing this, if you get calls with a big bet, you can feel where you're at, and then from that kinda determine what they're calling with etc, aka putting them on a range of hands.