Go for the Soffi, it's a really great bag.
Just an FYI...the Soffi has been discontiuned. I went ahead and purchased one for a very early birthday gift for my mom (she won't get it until November) because whatever stock they have left is all you will be able to get now.
Ebay is not a bad route to go...if it's in great condition and you really have your heart set on that soffi then get it authenticated here and consider that option...I am sitting here bummed with NO plan. LV just called me back after speaking with the ONLY store that possibly had a Soffi in-stock and it had sold. Now there are NO Soffi's left and I'm feeling a bit lost.
I didn't like the Riviera's structure as much. I do not like the Neverfull straps. The Totally is too "diaper bag" for me. The Speedy is a little too structured for my liking. I don't want a crossbody. Seriously, what's my other option in the Azur???
And I only saw 1 Soffi on Ebay and she's in Hong Kong, so I guess I could have it authenticated but I have never bought anything that $$$ off of Ebay. Seems a bit scary.