It is all about the drivers at the end of the day, but still you always fancy your teams drivers more, if that makes any sense.. Anywho, for me it was kind of like with Juve, one player, in this case driver, got me hooked and I can't let go. It was Senna of course, plus as I was a kid then so I was influenced heavily, by my family, to support McLaren and it stuck with me.
I can like particular drivers from other teams, for example Button, Kubica, even Kimi who's at Ferrari now, with no problems but i always hope someone from McLaren comes through in the end.