My biggest hate probably goes to KFC, McDonald's (not giving a fuck about cruel treatment of animals, promoting unhealthy lifestyle to children and simply selling shitty food), Apple, Microsoft (both trying to monopolize many parts of IT industry and in case of Apple organizing some kind of massive cult for their electronic devices). Google has also shown on my black list recently, as I removed my Gmail, YouTube accounts and started using DuckDuckGo as my search engine. The amount of information and power they have nowadays is immense and I somehow don't trust them. In general, when buying, I try to avoid big companies and buy from smaller, ideally local, ones. That is often more expensive, but from my experience the products you get are often of better quality and so it may pay off (at least partially) in the long run.
My only quarrel with Google is how they have changed YouTube, arguably for the worse. The Google+ comment integration is a very, very bad policy and the ContentID changes are also bad, because even using a few seconds of footage from another party registered to this system not only means that you cannot monetize your video at all, but also that ads will still be running on your video and the copyright holders registered on ContentID will get the full income. This has even allowed a lot of copyright trolls to cheat the system and instantly claim revenue from videos they are not supposed to claim revenue from.