In terms of tech I think they're pretty much on even ground this gen with HZD offering an overall more impressive graphical tour de force than UC4, ND had a slight edge last gen tho. Story telling, character interaction and cinematics are still in ND's favor, in fact TLOU is still by far the best in those regards at least to me. However HZD is a massive leap over anything GG has done prior and it's definitely inching closer to the mastery of ND but still not there yet. Gameplay wise HDZ has UC4 beat I have to admit, it's simply offering a lot more and being much more open, ND tho excels at set pieces but there wasn't enough in UC4. Overall GG's capacity of creating a top quality game is up there with ND now thanks to the universally aclaimed HZD although ND's effort with TLOU2 will most likely spearhead GG given their amount of experience.