cross promotion

Hey guys, I'm Winny and I do funny videos on my channel. I don't have too many subscribers yet, but like YOU, we are trying to grow it. Why not grow TOGETHER?? We can then help each other out and give each other feedback. If you like mine and I like yours then we can also cross promote and so...

Does having links linking to my video from other high authority / high rated videos improve the rating / rank or my video? :unsure: Either link to my video from other video descriptions and/or links from on the video (annotations, cards, etc..). :P

Which do you prefer to promote across all of your videos using the YouTube Featured Content option? Do you promote your Most Recent Upload using it or Your Channel? :P I change it back and fourth nown again because I cant make up my mind which to leave it on. lol :P

Do you think that links in video descriptions get decent amount of clicks? or do you think people don't see them much and/or ignore them? :P Talking about both links to other YouTube videos and/or other websites? :P

Which do you prefer to use in your videos to tell your viewer about a link, playlist or other video? Annotations or Cards? I don't have many annotations in my videos, but I have been starting to add quite a few cards across my videos. Not sure which I prefer though as I'm not sure which works...