I have no brand loyalties. I do, occasionally, harbor brand disloyalties. If a brand does something to annoy me, I'll go out of my way to avoid them for a long time.
Yep. Easier to earn my hate than my love. I generally try to stay away from generically named chinese brands that are basically cheap ripoffs of another item. I see a lot of these on amazon nowadays and it annoys me.
Regarding loyalty, I won't buy a Panasonic item if there is another clearly superior product, I will usually lean their direction if there is any hesitation.