Welcome to the forum ClouDx,
Both the LG & the Nec should give satisfactory results provided the media is very good to excellent (Taiyo Yuden MCC etc). If you media availability could be a problem ie varing sources/grade etc then the BenQ is the one. Personally I'd go with the BenQ an excellent all rounder with bitsetting/SolidBurn/OverSpeed all supported by manufacturer. LG is a fast & reliable writer but not so hot in other areas. The Nec is a safe DVDRW IMHO, not really excelling unless paired with Liggy & Dees' f/w .