I thought I'd post this win from the Eastern Class last month seeing to how you all seem to appreciate the pawn mate.
I like when I can see a tactical shot in a game a few moves ahead before my opponent can. In this rook and knight endgame, I had active piece play against a passed pawn with even material. When my opponent tried to make a run for the h-pawn, I had the choice of playing defensively and going after it or playing a little more aggressively. After 37.h5 I then saw a nice set up.
Regardless of where he moved the king, Rh4# is such poetic justice for racing the pawn up to h5 blocking his defence.