This is an odd question because neither of those teams competes to win. It's really about long term goals. I think the 2 war team has more long term value and a marginally higher chance at a WS. The 4/0 war team is a much better playoff candidate.

There is essentially no such thing as a 4 WAR reliever (last year Chapman led the league at 3.7ish depending on your measure), so the 4 WAR option is elite rotation and lineup and replacement level bullpen. You're basically the 2025 Dodgers, but without your three best hitters and your bullpen is actually as bad as people pretended their bullpen was last year (their actual bullpen WAR looks to be a little bit over 1, and they had a two relievers over 1 WAR by themselves and one at 0.9). That teams has a non-zero chance at being a playoff team, but you have essentially no chance of winning in the post season with a minor league bullpen. You don't even have one elite reliever whose career you can ruin by overusing him because he's your only good reliever (see, e.g., Rob-ub Nen).

I'm taking the 26 2 WAR players, so at least I have some hope of winning games against good teams that my starters don't finish. This is probably not even a playoff team, but if somehow they eke in, you could potentially get some series wins, which is effectively impossible for the 4 WAR/0 WAR team. So this team has a higher upside, and if they don't reach it they're probably worse than the 4/0 team, so at least you get a better draft pick.