You're right. There are too many awesome Deadpool moments to ever properly document XD
Although... the rochambeau moment kind of tops everything, in my opinion, in terms of sheer badassery.
Conversely (and since I'm such a sucker for character development), anything where Wade gets introspective really gets me. I like his little scene in Cable and Deadpool where he reveals "why" he killed Barat.
Also, anything to do with Killebrew and Deadpool's maybe-there conscience tug-of-war. Gets me every time.