I'm a fan of good legit top teams, but would lie if I said that NiP isn't one of my favorite teams to watch. Because they very often brings close and really entertaining games.
FaZe is another team that I like to watch ever since they started the "original" line-up with Maikelele. Not many counted on that team (with players from many countries with different languages) to be good or to challenge the top teams, but they showed many doubters the opposite. And now with Karrigan as IGL it could be really good as well.
Would also be quite cool to see Tyloo qualifying for the major.