Alex
Arcane
This guy takes the cake. He begins each part of his 75 parts LP of Phantasy Star 2 with "HEEEEEEEEEEEEEEEYYYYYY!!!!!" in the most infuriating way possible. He constantly makes stupid comments and constantly tries to sound whiny and entitled, saying things like "I'm so tired of this dungeon, f***, lol". He sounds like an extremely spoiled, entitled brat, is brazen as hell, and he swears like a sailor.
That's because it IS just a dumbfuck kid with way too much time on his hands.
Finding a good LP'er is not as easy as it sounds. Finding a good LP'er who plays the games you like is the proverbial four-leaf clover.
Personally, I rather like the longplay guys. Although, obviously, they haven't covered every game. Still, they know exactly when to open their mouths.