As much as I don't enjoy stick fights that much, I found this one to be pretty decent. I liked how you only used frame by frame animation, and no tweens, like you stated. Indeed, you must have had a good dedication in some parts here. Also, I really liked the music, Bad Religion is a great band. And the way you ended everything "into oblivion" was nice as well.
Although... the whole "stick fight" thing is rarely very creative, since it's been done lots of times. Even though yours was good, it was still pretty short. Mind if I encourage you to make a massive one? :P Maybe not massive, but enough to finish this song entirely (which is ~2 minutes long). I'm sure it would look at lot better today...
Yeah, I'm still not the biggest fan of stick fights, although I liked this one. Improvements can be made, and I'd like to see a longer version. Also, it needs more goats.