As a bed VS has the better product. It is a real mattress (the seat flips over to make the bed). For all other aspects, LH is better (and their new F terminal in FRA is superb, however the VS Clubhouses are not too shabby and better than the other (non-FRA F) LH lounges). Also technically VS is J and not F (though priced like F, higher than most J fares). Service on VS is hit and miss, and the food is eclectic (LH has quite good food and much better than VS). But those VS beds are fantastic (also being installed by NZ and AC, from the same manufacturer, apparently VS didn't get an exclusive license, unlike BA for their J beds).