I really don't think that there's that much difference in the burn quality that is affected by the burning app.
For burning Dual Layer media then yes it makes a difference as to the handling of the layer break.
For DL burning I'd use only DVD Decrypter or ImgBurn but for single layer I use whatever suits at the time & I haven't seen any noticable differences in the burn quality & I scan every DVD I burn.
The most significant factor is the burner/firmware/media/speed combination. For example Ritek G05 burned on my Benq 1620 are virtually coasters but on my LG4163B I get a very good burn. BTW I'm certainly not recommending G05 media by this statement , just quoting an extreme case.