Struzan for sure! Berni might paint a nice cover, but it has none of the magic of a Struzan. The fact that he has been the inspiration for so many artists working in the field of illustratrion speaks volumes. If you asked the majority of working illustrators that grew up in the 70's to the present, I'd be willing to bet a great deal of them would cite Struzan as an inspiration or the reason they started in the first place. His work has been continually imitated, but never duplicated. Just look at the fan section on this site alone, where almost all of the art strives for a Struzan look.