For me, it's a guy named Marko Lazic who's building luccid.ai, which allows you to design your dream home. The reason why it's Marko is that he had to overcome a lot of challenges to get to where he is now and he's also building a kickass product to disrupt an old-school industry.
We're having a small discussion in our office about this. The majority is part of the coffee-empire but a small group of tea-rebels is fiercely defending their opinion. What about you?