BoB usually got liked more because it had a cohesive narrative arc with essentially the same characters throughout all doing stuff together. You really couldn't replicate that directly with the Pacific campaign, primarily due to the high casualty rates and the vastly different divisions/outfits/fighting locations. Like you could follow the 1st for Guadalcanal and Cape Gloucester, then they absolutely got decimated at Peleliu and later you had Okinawa. But you also had other divisions doing other battles on different islands. The show was able to follow a couple characters throughout the war, but you never had that same large cast of recurring characters like you did in BoB.
Pacific does do a better job of showing how messy and fucked up war is, though. And the Pacific campaign was 10x more brutal and unforgiving than the American European conflict.