What chain do you prefer us to operate on?
Hive. No question there.

What do you like about Hive?
Steem is getting hard-forked one way or another, if JS has his way. Hive looks like the fork that has investment and momentum. The name is a good nod to the communities-focused nature of the chain.

If you want to stay on SteemPeak.com tell us why.
The interface is nice. Admittedly I haven't branched out that far in trying others. Something always felt a little uncomfortable about how steemit branded itself in relation to steem, though I didn't know the depths of it... I just knew I wanted something that was stable, secure, and not steemit. What's the point of a dApp if everyone uses the official corporate endpoint anyways?

What 2 URL choices do you prefer for our re-brand?
Of those listed, PeakSocial.com. I saw BeeSocial in the comments, I like that too.

What chain would you prefer our witness to be on?
Hive. I spitefully want a bunch of witnesses to stay back on steem and fuck sun, but the health of the real blockchain takes priority.

Any concerns you're having?
I'm worried that a "watch and wait for stability" approach from some dApps switching over will lead to many lost posts from a user perspective. Worried about how onboarding new users and recovering accounts will work out, the new chain is necessary for the community to come together to solve such concerns but I'm not sure it's sufficient... and it might not be fast enough to avoid a significant upheaval. (Especially if the 30-day voting block applies to airdropped SBD.)