Where can I catch the Big bus?

Hello, Is it a good time to visit the peak in saturday 26Jan?! or it will be very crowd because I would like to see the fireworks there, as I had seen them at victoria harbour !!
My 2nd Q is: what are the stop stations of the big bus?! I hope just to walk around HK
So, I am wondering if The ticket of the bus should include other attraction tickets such as ocean park ? or I can buy a journey ticket without these offers?!! How much is the ticket?!!
Thanks aloooooot