It's pretty hard to stand out especially in the gaming scene. Even though a lot of different types of videos have been made.
Let's Plays, Game Reviews, Showcases.
Each one has so many "stigmas" which not many try to ignore. They aren't THAT bad but some might consider them stale.
That does not mean not use them but if you want to stand out i'll put down the ones that I think are overdone.
Let's Plays:
1. Screaming into the mic. Never funny in my opinion. You will have a children fanbase if you even get one.
2. Main games only. If you only play CoD or Minecraft after a while you are going to get burnt or your subs are going to get burnt.
Then when you try to do a different game it might be so different nobody will stick around. Always be diverse.
3.Proper Lighting and Audio Quality - I can't tell you how many PFFFPTTTT noises I hear from people slobbering over their mic or that it's to quiet.
The same can be said with the "Unregistered HyperCam" or "FRAPS" on their recordings. It's super annoying and degrades the video.
Game Reviews:
1. Using Mario Kart Music - This can't be all that bad but EVERY game reviewer uses this. Nobody really branches out with their music or tries to fit it in their video in some way.
I sometimes can't add the right jams to what i'm talking about since it doesn't meld well but for some I find the perfect thing.
Just stamping on some random song is so lazy.
That's just me I think
2. Yellow text in the middle - Jontron really started this and it's once again NOT that bad but some people are getting bored of that.
3. Opacity/Motion blends - I am a culprit of this one. Fade ins/outs and blurs are fine but over excess can hinder your channel.
Showcases:
1. Not much on these besides keeping your videos high HIGH quality.
Things like Cinematech used to be huge because it was high quality for the time and combined with the proper music people usually liked them.
Hope that helps man