That episode with the Pandorica box had me hoping for an epic battle between the Doctor and all those who showed up to take the box.
It happens in "Time of the Doctor" but mostly off screen. That Wikipedia link reads as follows:
Lying that he won't send Clara back again, the Doctor does so and she returns to Earth as the siege of Trenzalore becomes an all-out war. As the centuries pass, most of the races depart or are destroyed, leaving only the Silence (with whom the Doctor joins forces, putting aside their feud) and the Daleks.
I would put the end of that episode as a pretty good example of an epic fight against his enemies as well.