I've used both, and prefer the look of Acros. I have no hard, scientific reason for this...I just like the look of the finished print more.
However, two things stop me from using Acros. First, Acros is only available in Quickloads locally. Since I don't hike long distances, the bulk of some extra film holders doesn't bother me nearly as much as the huge difference in price. (I know that I can order loose sheets from Japan, but I just won't be bothered to do that. If it wasn't for the next issue, I might be willing to try it.)
The other thing that I dislike about Acros: Each sheet has a small hole punched in the film, actually in the image area. The hole is for hanging the film to dry, but I absolutely loathe it. It means that part of my image is of no use to me, because I have to crop out part of the image on each sheet when I print it (unless I want a perfectly circular black hole in the corner of each shot). Why Fuji (a company that apparently puts some thought into what photographers want in a film) punches a little hole in each sheet of film is beyond me.
Some of my best work in 120 has been done on Acros, and I really wish I could use the same film across formats. But as long as I have to pay for Quickloads, and that inflated cost comes with a hole in each sheet, I won't be shooting much Acros. (Just the occasional fun shot until I get through the rest of the box that I have.)
Best of luck to you. Maybe you can find some nice people nearby to loan you the film holders and a few sheets of film to try out.
Be well.
Dave