I fully expect someone to compete with Steem on EOS. There are plenty of issues and areas for Steem to improve and it seems development is pretty slow around here. Ignoring the user experience to chase a grander vision is risky.
I see Bitshares being ported over in a very mutually beneficial way in to EOS and serve as the financial backbone. Would love to hear what @stan says.
YOYOW is already Chinese competition and GOLOS is Russinan competition. One could take a bunch of ideas from TRON, LBRY and add a marketplace like SYScoin and basically you'll have a winner. Maybe some of the creators of those projects would join.
What I'm most excited for is Gamecredits and MobileGo. They already plan to develop for both Ethereum and Waves and that mindset isn't too far from "Hey, let's go for EOS". Their project is solid but they'll really need scaling. Think about putting down a review after a purchase or voting for a game.
Even if you manage that what about chats and release days for video games that sell few million copies in 24 hours. EOS devs should seriously talk to Game credits. They have a great teams and not much of games or a scalable platform.
so you like to have monopoly's around like facebook or what? what's wrong with competition? the west won't use yoyoow and golos is steem so there is not competition at this point.. gamecredits is the only one that did nothing and I tried using the other ones you mention here i have used lbry and to store for payments makes no sense you must pay to watch a video aswel, it's the reason for the price aswel it will be back below 0.25 soon but i guess 10 cent suits more.. steem is a blockchain which goes beyond steemit. I only fear the way it may become when leaders with high steempower don't interact and prevent pricepoolrape by a few whales and even tend to be guilty of gangrape the pricepool theirselves maybe.. the credibility of those who had previlege to mine and the upcoming begging 3th world who spreads the most dirty in the new section aswel... those are factors to fear