Although you stated you would press charges, the people actually prosecuting the charges is the State's Attorney's Office. You can request to have the charges dismissed, but they only have to take that into consideration. It does not make them dismiss the charges.
You may be willing to testify in his favor, but you still have to tell the truth - that he hit you and you hit him back afterwards. If neighbors saw it happen, then there was an independent third party witness. There was also a confession. It would be very difficult to obtain a complete dismissal in this matter using any legitimate method.
Answered on Sep 16th, 2013 at 11:26 AM