Probably the best melee weapon in any game, Gears of War's Lancer and its chainsaw bayonet is soooo satisfying. Nothing better than bathing in your enemies blood. Unless they have AIDs or that infection from 28 Days Later or something...
Some nice videos; I especially like the slo-mo stuff;
The last one looks like it was played by a bit of a noob, but Metallica scores him extra points and makes it worth watching.
Master of Puppets+Chainsaw Fest=Good, nay, very good combo. \m/
Completed Gears of War today, shoulda played it earlier, but hell, it definitely didnt get any worse. Still one of the best titles on the 360 IMO.