1-3 are so full of BS like others have said
the markets are extremely competitive and no one makes a **** bike in a given price range
giant no longer makes an aluminum/carbon model but the carbon model sell for almost the same as I paid for 2008 Giant now with 105
decide what you want.. sounds like it is a tarmac
ask around as to who does good fits and find the right bike for you
if you go to
http://www.specialized.com/us/en/bc/...20Fit%20Dealer this lists all the authorized BG fit dealers for specialized if you have decided a tarmac is for you