Oh boy theres quite a few I watch but heres a few that people haven't mentioned yet.

Neocranium – Streamer but posts edited vods on his channel that are very entertaining. Also quite well versed in the art of 3d animating which they incorporate in their vids!

Valefisk – One man's ongoing mission to torment his friends via the medium of video and board games

Tehsnakerer – If you like your long video essays, I've quite enjoyed having this guy on. Covers a few more obscure games you might not have heard of too! Plus thanks to his series on the Yakuza games I now have like a 10% idea of whats going on in those games xD