The first person I subscribed to on YouTube is an LP'er. That was GarlandTheGreat. I loved his Crash Bandicoot LPs and his Chrono Trigger LPs. He also has in my opinion the best LPs for the Donkey Kong Country series.
I also watch Chuggaaconroy. I know a lot of people find him annoying, but you know I find Game Grumps to be annoying which mainly consisted of Egoraptor and JonTron who I like both of them, but as LP'ers they annoy me. I will say though that Chuggaaconroy is not as humble as he used to be.
I used to like ProtonJon, but his inconsistencies with his main channel and his obsession with mostly streaming his quite irritating. I think he only got close to Chuggaaconroy because people were forgetting about him and he wanted to be back in the limelight. Honestly, does anyone here even know who AzureBlade49 and MoltovMarioWorld are?
At first I wasn't too fond of Markiplier because I instantly wrote him off as a PewDiePie knock off, then I saw him LP the Deep Sleep games from Newgrounds and I learned that he is a big Newgrounds fan. Also he to can be a bit annoying sometimes, but not on the same levels as PewDiePie. Also Markiplier is very humble even to this day while PewDiePie... is not. Although they both do quite a bit for charity so that's always cool in my book.
I also watch SwordlessLink, I loved his glitch run of The Legend of Zelda: Ocarina of Time which if you haven't seen that then you ABSOLUTELY NEED TO. Seriously there is some fucked up shit he does in the game.