I wrote this as a response to another vendor in a post I figured it was verbose enough to share it as a thread. Please, let me know your thoughts and opinions on the accuracy.
I think the simplest (and least likely to succeed) will be Berlusconi. It looks like Hansa V2.0, the only difference is the "ship" is missing, and the colors are different. I like it for it's speed and simplicity though.
Sourcery, seems to have the best support so far hands down. I have made a ticket and almost instantly got a response 2x now. That will work in their favor but the layout can be a bit confusing, as their seem to be a few hoops you have to jump through, like not being able to just use a regular coinb.in addy you HAVE to make an electrum wallet to use their market.
Libertas, also seems to be pretty badass. They are a monero ONLY market. Site seems to be relatively responsive, I am not a fan of the booger green color, but they seem to only allow high quality vendors their. I had to make a customer account and PM the admin to see if I could get a "special vendor invite code" as when you try to register as a vendor their they will not let you unless you have said code.
Currently I have 100+ sales. With out a doubt, once I hit 200+ I will be applying at CGMC. I LOVE their site layout, and they only accept the best of the best in terms of vendors.
RSclub is also worth a mention. Pretty well organized site. The admins openly have stated on reddit that ANY vendor from TR gets a vendor bond waived. They do so pretty quickly too. Having to fill out a captcha ever 5 minutes is getting a bit old but I am sure that is only because I am making listings atm. All in all it seems like a pretty good site.
I still say though that if Aero, stays alive they will be in 1st place in short amount of time (like a few months tops). Both aero and libertas are new on the scene as per DNM's go, but both seem very sleek and easy to use. Although aero has features I have never seen in a DNM before like a form of ccleaner, or bleachbit that "cleans your account", a dead mans switch AND a "burn account" button, which for some reason makes me just wanna push it 5x over! :)
Very slick interface. I cannot wait to see what the "vPanel" looks like. I hear on their forums that the poor bastards are getting 1k+ tickets every 24 hours, I think it's going to be the next AB/Dream in the hayday when they were actually good. It will be interesting seeing everyone come together over there. I have noticed that people who left AB either went to Hansa, or Dream. Then after hansa they went to either Dream or TR. Now that BOTH of those are off the superlist I can see Aero, becoming like cosco :)
The vendor first approach sucks. Don't fuck with something that works. Put the products on the home page and have a product menu on the side.
Sub is full of complaints about how piss poor their UI is. People also having trouble entering PGP keys. Needs a lot of work.
Design is dog shit. Menus aren't functional. Generally annoying UI. A mod mentioned they require javascript. Sort it the fuck out.
The best but weed only and there were like 3 vendors in my country.