If one wishes to consider the Ta-152 a member of the "190" family, then it is far and away the best dog-fighter with its relatively competitive turn rate and E-retention under maneuvering.
If you don't, then it has to be the Dora. I've flown both the D9 and A5 quite a bit and the Dora's far greater E-building capacity and power in the vertical more than makes up for the A5's moderate turn radius advantage.
No doubt the Dora is a beast, but flat turn radius - which you really should not be relying on anyway at all, let alone in a 190 - is only one advantage that the A5 has. It rolls faster as well; almost ridiculously so, which is huge in a multi-con engagement. I'd say that is the biggest advantage it has over the Dora and, in a 1v1 situation, I would much rather have the A5.
In todays MA, though... tough call. Titanic Tuesday means I put away the early war birds for the evening.
The 152, however, I will confess is even more of a monster if properly used. Although a member of the 190 family, its application in the MA is totally different than the rest of its brethren, IMO.