It was a difficult task until I discovered the best way to boost a YouTube video rank, but then.. it works like a charm.
The foundation of ranking a webpage from a popular website like YouTube, Slideshare, Issuu, Scribd, Squidoo, etc is to use customized social profiles/accounts, usually designed by interests and location (for Local SEO purposes). Also, to validate these social accounts, you need to follow some relevant people (based on related interests and/or same location).
So, for ranking my YouTube videos (and indirectly my NYC SEO seller page), I used a dedicated YouTube channel (targeted via "SEO" interest with a NYC based location). Also, for ranking the video, I shared it on most popular social networks social accounts designed after the same criterias. More over, I used landing pages from Google+, Facebook and a Pinterest board, with a similar "SEO design".
I know it's hard to build that kind of social profiles/accounts, but this SEO strategy seems to be the most efficient to rank fast an YouTube video (or any other webpage from high PR social websites).

