That's an extremely variably-answered question. It all depends on what your usage entails, whether that's browsing, calling, messaging, streaming, the list goes on. It's much to variable to get even a decent trend. Sure, people can give you their own experience, but again, that's based on their usage, not your own.
Well why to call the question ridiculous, if you dont want to answer or dont know the answer just go ahead, no one is forcing to come here and reply, its really a simple question.
My 4S takes almost 3-5 min to drop from 100 to 99% battery. the later drop downs vary too much!