One of the reason steemit is not really popular despite the fact that it pays people is because people don't like to change their habit/behaviour.
A site like this means people have to start writting stories and spend a lot of time just to create one post. Also it is not a familiar environnement for them because none of their friends is on the site and with social features seriously lacking people don't even suggest their friends to come over here.
That's why I am more optimistic about busy than steemit because busy will look very familiar to most people and they won't have to change their habit to use the site.
Also I think the dollar amount shouldn't be displayed because when people see money they do not interact in a natural way, in the same way they would on facebook,etc..so they change their behaviour. Also if busy becomes very big it means the average payouts will be a lot lower than they are now, even if the price increases a lot which is why if you base your marketing on the money aspect you are bound to disapoint many people when the money dries out. The money aspect should just be seen as a bonus not the actual reason for people to use the site. That's also why I suggested the team at busy to hide amount and to allow people to be able to also like stuff without actually voting ( have different types of like), this is key if you don't want to hurt people's feelings = have them leave the platform.

Regarding steemQ I wouldn't get my hopes up, they havn't given any update in 2 months and @furion seem to be working on other project, so it looks more vaporware than anything at this point.

To me the big winner is going to be busy, because they understand the importance to integrate many apps in the same platform. If you want to please everyone you need everything. And that's what busy is going to have.