I don't think anything can top Aguero for me, not even a last minute UCL final goal.
I have a fond memory of my old man shouting with 2-3 seconds in advance because I had a delay in the other room and the chaos behind celebrating after that with him. Even if he is not around, it always gonna make me happy thinking of that moment.
I think we were lucky as fans to have Gillingham, Aguero or Villa.