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.