Melvin Udall (the character in As Good as it Gets) was awesome. He has just so nasty... he was a trainwreck... and he dealt with the consequences... I love the scenes where he was put in his place...

Remember when the flamboyantly gay art dealer Frank Sachs got in his face (played by Cuba Gooding Jr) That was hilarious. Frank refused to be intimidated and said something like "my grandmother is tougher than you". Udall got scared and backed down... hehe. Then Udall ended up using the same line later.