My V9 came with SLC carrier and LC soft luggage
The SLC carrier is very unobtrusive
The LC Legend soft luggage looks great but cannot be locked to the bike or locked shut
Thus, the quick fit function could become a "quick nick" function if some light fingered individual fancies your panniers.
I'm working on a cunning plan to lock them onto the bike
The hard Urban ABS Side Cases can be locked to the bike but don't look quite as good IMO, but I've not seen them in the flesh yet
You can get an adaptor for the SLC carrier that you can bolt any hard case you fancy too it. (You can also get an oval race number plate that uses the sale SLC carrier)