I think that the reason Andrew Garfield will make a better Peter Parker is because like Mark Webb said "The defenition of a nerd has changed." A nerd used to be just anyone who works real hard, looks wierd, and doesnt have good people skills. Today a nerd is an "outsider" and an outsider could be anyone nowadays. Today most people are outsiders just because they are shy or because they are not skilled socializers.This transition in my opinion makes for a more believable and more importantly relatable Peter Parker today then the one in Sam Raimi's Spiderman.
Now I havent seen The Amazing Spiderman yet so my opinions are subject to change, but until then this is where I stand The Old vs. The New. Im not sure if this is still a big topic or not but I just thought that this needed to be given some actual thought.
The Amazing Spiderman comes out July 3, 2012