I do like some videos but it's pretty dependent on the game and also the player. I'm a lot more into a player being creative and basically choreographing something vs just pure skill. I love Vanquish but didn't much care for that video as it was too montage-y with short clips (the Previously Recorded clip at the end was pretty funny) , I like to see someone take down a whole encounter vs just a single enemy. Most shooter montages are pretty boring unless you're really doing some unique things. When I was learning to play online shooters and "git gud", watching full unedited matches of top players was key. It's not watching the actual kills they get but figuring out the "whys"; why they went there, why they did that, etc. Being good at a shooter is all about doing the little things and having superior positioning (both on the macro and micro levels). Anyway, I really love StealthGamerBR's videos, especially the Dishonored ones.
My favorite Vanquish video (not that I've watched a lot of them, but the ending is so awesome)
StealthGamerBR