The DVD cover of the film is more faithful to the Toho picture and director Ishiro Honda's Japanese vision. The original version is easily the preferred film.
Though, Varan The Unbelievable was originally a US/ Japan co-production that fell apart on the American side. But, as always, the US inevitably bought the rights and edited their own dubbed and butchered version of an ultimately different film. Many writers like Stuart Galbraith IV [Japanese Science Fiction, Fantasy And Horror Films] and the folks over at Toho Kingdom have offered a nice assessment of the American version in their coverage of the film.