Assessment of an USPTO First OA

I filed an application and got an Office First Action from the USPTO. The action is about infringement of prior art and it's a lot to read. From the assessment you make, I will be able to conclude the rough percentage of chances of being granted a patent, in case I prepare a response to the first OA and send it to USPTO. Note: I'm not asking you to prepare a response to the OA! but I'm not looking for such answers like: "you can never know", or "it depends on how good your response is", either. You must have access to all prior art mentioned. Thank you.