If I was cool when I was 14, I would have said, "My favorite website? Well, my own, of course." Then I would have showed them that I had my own domain name, and a server, and I knew how to do programming, and then they would have been my girlfriend.
Or none of that would have happened, and I would have just told them that I liked looking for game reviews and walkthroughs on Gamespot. They would then ignore me until their programming projects were due at the end of the semester. But by then I would have been finished, and was playing Half-life Deathmatch with the other kids on the computer lab LAN.