PewDie was my first, but like I said before, I saw him years ago when he first started making videos. Back when it was all rough and barely edited. I do love Cry though. I think it mainly depends on the game because Cry can take things more seriously then PewDie.
He's like the absolute only youtuber i see here who gets a buttload of art. Don't get me wrong, while I think his indie horror game lets plays are really annoying as they're pretty much just a grown man shrieking at things I don't deem very scary... at all. I think his irresponsible dad and son Happy Wheels videos are hilarious.
On the top pics, its like he's the only one i see there. which means that everyone gives him alot of attention which means that he's really really popular on deviantart while no other youtuber i have ever seen winds up here. alot of the time it isnt even really fan art its just random pictures of his face or memes or something.
Pewdiepie only gets attention because he has a good sense of humor,and he was found over time.He didn't become famous in a blink of an eye.And I'm not the deviant art help desk.Go take it up with them,even though I doubt they'd care.