Markiplier and PewDiePie have many things in common. They are both successful YouTubers who post-game commentary. I think they are both great at what they do, but if I had to choose one person, I would select Markiplier. I feel that Markiplier goes out of his way to personalize his videos and give the best commentary that he can.
He does so through comedy and being animated through his cries, screams, and yells. Markiplier is so motivating that not only do you want to buy the game he is commentating, but you want to create your channel to commentate as well.
Both Markiplier and PewDiePie are great in their respective ways. I love Markiplier, especially when you consider his unique way with which he makes sensationalized commentary on video games. I also love his ability to yell, cry, scream in a way that will make you laugh. I believe Markiplier is way better compared to Pewdiepie, especially when you consider their different ways of making video game commentary. Markiplier's will always motivate you to the point that you might start thinking of creating a YouTube channel.
He also cares about his followers; he spends his money on charity works compared to Pewdiepie. I have heard and read different comments about how people wake up every morning with a very strong longing to see Markiplier's videos. However, I also prefer Pewdiepie to Markiplier whenever I want to crack my ribs; I always find Pewdiepie very funny. The good thing about the two is that they are not in any form of rivalry.