I was going to answer "yes, my favorites are Sturmey and Archer" but since everyone else seems to be giving a serious answer I'll try that as well.

No, no brand loyalty here. But when I get something I don't know anything about, I tend to research it to learn what I can learn. I do this with everything, not just bikes. And once I know something about a brand, my ears perk up when I hear of one. That's how I ended up with a Norman Rapide (that I passed on to another forum member a few months ago). I'd love to pick up another high end Norman sometime... is that brand loyalty? Also, I have more than my share of Raleighs... but again, that's just because I know something about them. So when I saw a Lenton Sports I could pick up for $40 at the swap meet, I grabbed it fast, because I knew what it was, knew it was cool and a good deal (and my size). Is that brand loyalty? I don't think so.