Someone must have made a ton of #4 bag or else the same bag keeps turning up on eBay-it's atrocious.
They all look questionable, esp. 2, 3, 4. The first one just doesn't have the look of a real Sloane (poor reasoning, I know), and the last one I can't tell. I don't know much about Cabats. The reason I question the red Cabat is it doesn't look like a red from BV, and the leather is awfully shiny. #2 doesn't look like a real anything--the handles and where they attach to the bag, the weave, etc. all look wrong.
Baggiana, you have a very good feel for what is authentic. It's hard when they only post 1 or 2 pics. That bothers me when someone is selling a bag and buyer isn't given the info they need.