When Steve Jobs sent an email to IWS Global Design Director in HP saying that we were finally thinking about design the right way, showing a printer i designed!
Priceless moment...
I may be biased to say, the Apple Ecosystem. Every product is well thought through. I still crib about one or two things but Apple is a company i will look upto in product making. Starting from Keynote all the way to Mac OS everything is well thought through from a HCD perspective. My personal experience and I am not going to debate this with Android lovers :)