Yikes. I guess there's a first time to hear everything I am sure that there are/were companies less deserving of any loyalty whatsoever, but Sony would have to be pretty far up such a list for me.
Define "100% loyal" for starters. I guess I would define it as "loyal, no matter what", in which case my answer would be "I have no 100% brand loyalties".
If we say "what brands am I reasonably loyal to, as long as they don't screw me over", then:
Asus
Iiyama, good products and customer service
Crucial
I would have mentioned "Corsair for PSUs" until they retired the VX450W, since then they seem to have gone downhill in the budget range.
I would have mentioned Seagate until they dropped their typical drive warranties to 1 year.
Western Digital, kinda
Eizo has a good rep, but they're not in my budget.
Logitech for mice
Coolermaster budget cases
Epson - good customer service and (in my experience and those of most of my customers) long-lasting hardware.
That's all I can think of for now. I'll read the rest of the thread to see if anyone reminds me of others I would mention.