I can't really comment on the other brands, but when I researched for rear stands, it seemed pit bull was the one everyone had high praise for.
I recently got the pit bull rear stand (with removable handle)...the pin that locks the handle in place is a little finicky...but otherwise not a big issue.
The removable handle is a good option, if you have limited space.(just got to be careful removing the handle when the bike is on the stand)
Even though I usually research things thoroughly, I bought this stand, and didn't realize that the top mount was only spooled.
I had wanted the spooled/standard top mount combo... no biggie though, the place I bought it from is ordering the combo top mount for me for an extra $15.
I figure the option for spooled or standard top mount is good to have, especially for future bikes.
http://www.pit-bull.com/mm5/merchan...duct_Code=F0028-000&Category_Code=rear_stands
btw, you mentioned that you might get the pit bull if you get a ducati....don't you have enough love for the ninja now?

....Team Green represent!
besides, if you get the "rolls royce of motorcycle stands" now, you won't have to buy twice....(and no I don't work for pit bull)
anyways, good luck with whatever stand you choose, let me know if you have any questions about the above stand.
edit: I made the incorrect assumtion that if you were to get a pit bull now, that it'd be compatible with your future ducati...
but it might not be (research first), so just keep that in mind...wouldn't want you to spend money, without knowing all the facts.