I have a very similar opinion. I like people who I think I could easily have a conversation with. People like kurtjmac, Welsknight, and Python have me watching a lot of their content simply because I like the people themselves. I'm also not big on people swearing all the time. I know they want to sound edgy, but it's not for me. I watch a lot of Minecraft let's plays these days, but have also watched EA Sports NHL gamers. I like to watch games I enjoy playing myself. But the gamer's personality is important. I'm a calm kind of person, and that's what I tend to like to watch.
When it comes to the type of game play for Minecraft, I like seeing survival with creative building over a long series. I love seeing how worlds change and develop. It's fun for me, and that's what I try to do in my own videos.