VS PE is indeed very good - way better than BA WT+. I've used it on 744, 346 and 330.
In my opinion, the best seats in economy (with no extra charges) on the 744 are at the very back on the main deck (last 3 rows I think), the side seats where the fuselage narrows are 2-across with extra space between the outermost seat and the side-wall. Nice if travelling as a couple.