Round 1: Match 27
Battle Royale

Japanese high school students killing each other in various violent ways, "Beat" Takeshi as the stone-faced teacher who kills a couple students himself, and Verdi's Requiem Mass. What's
not to love about Battle Royale? Very nice and often unmentioned use of the island setting, and paced extremely well over the three days. Not to mention the fantastic direction, especially the lighthouse fight scene.
VS
12 Angry Men

Twelve of the greatest actors of their day, a couple of them some of greatest actors of all time, sitting in a room deciding the fate of a young-ish man accused of murder. No need for a fancy plot or any action in this one. The direction could have been functional and just relied on the weight of the actors, but Lumet directs it in a subtle but very powerful way that accentuates the acting. One of the five best movies I've ever seen.