I enjoy making MCSG commentaries, as they create good opportunities for comemntary and are quite fun to make, unless you find gleefully murdering 23-119 other players boring. Also, you should not be concerned about what gets views or what gets subscribers but rather what you enjoy! I'm sure you've seen all the videos popular YouTubers have made pretty much saying 'if you go into youtube only for views subs and money, you're probably going to fail. If you go into there for fun and your audience can tell you're having fun, you have a chance.'
Anyway, I'm striving from my original point, I just figured if you were going to apply for a MCSG YouTuber Showdown, you would at least still be making videos and would at least record the game.
Oh btw, I would think that the goal would not be achieving mass subscribers, but earning a fanbase of awesome viewers and making people happy from enjoying your content.
EDIT: I would think you should use your other channel, pur8vil, since its active and you have made at least one minecraft video for it that was made after beta xD