I am a big MJR fan and a contributing patreon (under a $1 per month) of his metal militia army . My favorite video catagories are:
Hidden gems and top ten lists - These are great for making wtb lists of retro games/consoles I have never played or heard of before.
Weekly finds - Its really cool and neat to see what retro stuff he digs up at thrift stores, yard sales, pawn shops etc.
MJR even replied to one of the comments i left on his channel, he is really connected to his fans and will take time out for the little guy.
...that snes/neogeo that took 2 years to build...hilarious!
Metal Jesus ... does not rock. He himself doesn't seem to know much about games, and his guests always spew out incorrect facts. Like this video... getting the language wrong, saying clamshells didn't come until SNKP, kits come with manuals, dipswitches, etc etc.
That said, I've always liked the Classic Game Room videos, especially if I just want to see what a game is like, not necessarily learn it in depth. I think the Game Sack episodes are mostly done well, but their scripted banter got old, IIRC their Neo Geo episode was pretty good.
Another awful Youtube video series by an equally awful looking human being.
That man has two mouths