Has Facebook surpassed YouTube in video advertising?

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Facebook has been developing its video player for the past couple of years, and it has now improved drastically. It's easy to see how it could become a competitor for Youtube in the future, at least as long as short videos are concerned.
And guess what short videos are good for? Advertising. Not the old-style, cheesy kind you see in TV ads, but a fresher and modern type based on funny content, clever sketches and youth involvement. It's only natural such promotion would end up on a social network populated by youngsters.

With YouTube being more centered on video-exclusive content, supported by the channel system, could Facebook surpass it in terms of usage of videos as a means of advertising? Considering how well they blend together with other posts on Facebook, it would seem so, but I'd like to hear some other opinions on it.