For me a Dubrovnik set has to have broad base and not tapered one so that leaves 4 choices: House of Staunton, Official Staunton, Staunton Castle and of course Noj.
One note: House of Staunton 3.75" has two lines, the "budget" line that cost 219 USD and the top line which cost 359 USD. They're the same design wise except for the knights, the budget line is more unicorn like and less finely carved. Also the weighting is a lottery, if you're lucky you get a batch with consistent weights.
Staunton Castle will come out with different woods for their Dub line any time soon, so I'd suggest to wait to see what's that like. One wood for sure is rosewood, I think that will be a hit.
Edit: I didn't mentioned Thechessempire, although it has broad base but I don't like the knight.
Speaking about the knight, basically there are two version of knights, the classic one like OS and CS or the robust one like HoS. Noj has both, the 1950 version is classic one and the Minceta is the robust one. A matter of preference which one you like.
the update: lower bishop and queen and with wider bases
there is one mor player in the set :
I'm still not so proud about the knight so I'm trying a new ones
And finally a picture of what is in a psycopathic mind 



but I could'nt find any accurate information about it so I took a look to some pictures uploaded on the forum of SC version and I liked this version a lot as well as the bases a little more flat they have so I decided to make something similar. Now my goal is just to have a dubrovnik made by me. Maybe in the future I start my own version but for the time being I'm so busy.
I don't have a Dubrovnik set and I was thinking about buying one, but there are so many reproductions and variants that I really don't know what and where to search. What are the best reproductions and from which store would you recommend to buy one? Thank you