1. Horror- The old Amnesias, but a lot more (Ju on the grudge too)
2. RPG - Corpse Party & Broforce
3. Funny- GMod

But I like pretty much all the videos, always laughing

Horror - Outlast and Slender
RPG - The walking dead
Funny - all of them

Horror - Ju On The Grudge

RPG - Misao

Funny - YooStar

horror- slender,fnaf
rpg- idk
funny- goat simulator

Horror-Fnaf
RPG-The Walking Dead(God those feels tho)
Funny-Skate 3

1:Horror- I really liked Amnesia.That was scary as fuck because I actually jumped at some parts he was doing hahah!
2:RPG Maker- Corpse Party was pretty cool.
3:Funny-Only one?! OMFGudd...Ummm....Well like, WTF was up with that Baby Delivery one? Where you gave the chick a C-Section?! Goat Simulator was so funny, laughed my ass off! "This is how we do it in Goat Town, This is how we do it in Goat Town" or "Jergen you SLUUUTT! Don't Fight It! Don't Fight It! Let Me Looovvveee You!" Damn, theres so many funny games he played...

Horror: Pretty though one. I guess(from what i've seen) that my favs are either Within deep sorrows or affected, but can't really tell since i dont remember them all. But surely i laughed so much in any of them. The more the skreech is loud, the more loud i laugh.
RPG: Corpse party for sure.
Funny: Probably Conker's, and i enjoyed mcpixel as well.

My favourites are:

Horror : Outlast
RPG: Mad father
Funny: Friday with Pewdiepie /Pewds does everything/ his original videos xD

Horror: The Last Of Us
RPG: The Sims 3
Funny: Toilet Simulator 2013