The key thing for Dalot isn't really what he brings the attack, it's what he brings to the build-up. They aren't the same thing, and the latter is probably more important to managers like Pep and possibly ETH. It allows the team to have more control, helps out the midfield, and makes it easier to maintain possession and build pressure. It's something that AWB is incredibly bad at, much worse than his actual attacking contribution (which actually isn't as bad as some make out).Unpopular opinion but I would rather see AWB
There is this idea that Dalot is 'betting going forward'. I understand that we can't just determine 'better' through statistics, but Dalot has about 8 career assists in senior football. So we really are scraping the barrel if we're saying his standout quality is his attacking contribution. Like I say, I get it's about a bit more than that, but I really don't think Dalot is good at anything. In fact, I think he's pretty poor at most things.
Now, on AWB. Again, I get that he's supposed to be the worse option going forward...but his record is largely similar to Dalot's. Again...caveat...I know it's about a bit more than that...but I actually don't believe there is anywhere near as much in it as people make out.
Then we consider the defending. People talk about AWBs slide tackling style and make out it's because he's reckless and out-of-position, which I believe is one of those lazy things people who know 'enough to be dangerous' say about football. Sure, AWB makes plenty of sliding tackles, but that's his style. He lures players into taking him on because he knows he's so good in one vs one duels. So he'll shows players some daylight to have a go at him, backing himself to make the tackle.
And...on that point, when you select AWB, you can leave him alone to man-mark a player safe in the knowledge he doesn't need the 'double-up'. Dalot is a terrible one vs one defender, as we saw when that average Villarreal forward absolutely destroyed him time and time again at OT. That just would not have happened to AWB.
So to summarise quite a wordy argument simply...I don't think Dalot is good at anything, whilst I can think of uses for AWB. So I'd favour AWB and use him differently....i.e. overload our right side with attacking players and give them license to 'cheat' a little bit with tracking-back and stay higher to create counter-attacking opportunities.
OR...I'd use AWB as the Kyle Walker-style recovery fullback. So he ALWAYS stays back when we attack and we use his pace/tackling ability to help defend against breakaways.