Are they all the exact same account and software or is there any difference in choosing one account over another?

I've never used others. Maybe @Wyldanimal can answer that. He knows all there different site aliases. The software is mostly the same just named different to promote the site from what I gather. In tech terms I think it's called ''Afilliates'' they share back and forth with to sell both sides per say.

All are exactly the same, just a different set of graphics used for the app.

Thanks everyone.