Verbatims are made by Prodics (great) CMC (not so great) and MBI (variable and rare in the US other than at Officemax). The Prodisc have a - or + in the hub serial and there used to be a case spec but that seemed to change.
The Fuji are most likely TY as they are made in Japan. TY are top of the line but there have been reports here of problems with quality control and Fuji and also reports that Fuji was switching from TY to Prodisc (in this case, crap).
In other words, good luck finding any reliable source for store media. I would recommend Rima, supermediastore, meritline, and Burnmaster at allmediaoutlet, in that order. Most often you can find 100 for just under or over $40.
As to your BB quandry, I would go with the Fuji as it should burn better on your BenQ.
If your player will play both - and + then get quality and +/- make no difference.