ok here we go
under general gaming (self-explanatory):
gamexplain (a channel that basically generally talks about gaming, mainly the nintendos)
game grumps (didn't really get into it when i first heard about it, but pretty cool dudes who play games and talk about things)
vinesauce (a group of streamers who do things (mostly gaming) and add commentary to it)
yungtown (i honestly don't know why i'm subscribed to this guy anymore if he uploads rarely)
wiifolderjosh (like gamexplain, except more human)
nintendo (take a wild guess)
super smash bros (HMM I WONDER)
balrogthemaster (more nintendo reviewing goodness, although usually gets buried somewhere in my feed)
nintendomination (german dude who provides first looks at nintendo games)
pause/break reviews (british reviewer in the vein of jontron, tends to review older games)
really freakin' clever (points out the cool stuff of games)
jontron [jontronshow] (popular game reviewer, need i explain more?)
a+start (mostly subscribed to him for his glitching videos, although does other gaming stuff)
brutalmoose (guy who introduced me to the "jontron style" of reviewing, tends to review pc games)
caddicarus (yet another british guy in the vein of jontron, reviews playstation games)
caddy's conundrums (Caddicarus' secondary channel, mostly used for whatever else he does)
continue? (plays games, iunno)
exinthevatican (another vinesauce channel, they upload videos on different accounts)
jvgsjeff (subscribed because he played animal crossing back when i was into it, i'm considering unsubbing)
mike ironfist (reviews game boy games, never uploads anymore)
peanutbuttergamer (more reviewing in the style of jontron, this dude just reviews any video game he chooses to)
projared (more "jontron style" junk, this time a bit calmer)
rerez (professional gaming videos (if you think that's just another way of saying "mlg" then go away))
satchbag's goods (professional gaming reviews)
scykohplays (scykoh's secondary let's play channel, more about him below)
spacehamster (a more oddball "jontron-esque" reviewer, barely uploads)
the completionist [thatonevideogamer] (dude who completes games 100%>, then summarizes how he felt playing the game)
eggbusters [thatoneshowfun] (dude who tests glitches, also does miscellaneous gaming videos)
doand (cool dude who i met on another forum some time back, although doesn't put out much content)
scykoh (does "glitchfest" videos, although is swaying too much towards pokeyman)
under other (basically everything else):
crashsg32 (other person who i found on forums, mainly plays tf2 (which i don't watch) but also uploads some other gameplay videos)
ashens (picks up items from stores and reviews them, also does some miscellaneous videos)
deadvideo (the creator of sanic himself (i believe), makes joke videos in my vein of humor)
cartoonhangover (think of it as oh yeah! cartoons, but it's on the internet and created by dudes and dudettes from the internet, also has some original series)
benjamin briggs (sweet gaming remixes)
cartoonhangover2 (more from cartoonhangover, such as animatics and behind-the-scenes footage)
fapplet (xXxXMONTAGEPARODIES[GETREKTSKRUB][420]XxXx)
jaklub (?????????)
jelloapocalypse (makes some cool videos, obviously from tumblr judging by his behavior)
yotam perel [lazypillow (yotam perel)] (makes some sweet animations)
really3d (intentionally badly-made 3d animations)
deadgrumps (GAM GORPS ARG)
extraashens (ashens channel number 2, other miscellaneous junk)
seinfeldspitstain (?????????????????????????????)
under why am i subscribed to these people? (dudes that aren't really that cool, but still remotely interesting):
vsauce (2/3) (people who make intelligent videos and junk)
osfirsttimer (dude gets his mother to try out every operating system under the sun, unfunny jokes await)
uncategorized:
oli (makes animations)
pyrocynical (xXxXxXMOREMLG[OH BABY A TRIPLE]XxXxXx)
astronaut bryan (makes intentionally cheesy videos, doesn't seem to upload anymore)
ryan's video game corner [ryansvideogamecorner] (dude who reviews things like he's mentally handicapped)
glove and boots (two muppet-like characters who do things, often with hilarious results)
it took over 20 minutes to write this.