Alright, so, Top-5 moments of Endgame for everyone..? In no particular order, for me:
Thor summoning the lightning, transforming, and dual-wielding Mjolnir and Stormbreaker.
Cap dual-wielding, and using, both his shield and Mjolnir.
Return of The Decimated, with Cap saying, "Avengers Assemble".
Iron Man and Rescue fighting side-by-side.
"I am Iron Man" and the final snap.
I know, it's all in the last 45 minutes-or-so, but the greatness of the first 2 Acts just sets up such better moments in the 3rd.