The best screen I had for my Hasselblad, by far, was a Maxwell screen built by Bill Maxwell from Decatur Georgia. (just google 'Bill Maxwell' to go to his unofficial site.) He and I discussed, at length, my type of shooting, the lenses I had and the cameras I had, as well as my digital back and my style of shooting. We came up with a screen that best suited my style, and although I've switched to the H-series for my digital cameras, I still have that Maxwell screen in my old 500 c/m. I've never tried the Beatty screens, but the Maxwell screen was better than my Acute Matte.
Also, with focussing screens you should note that there are the Acute Matte screens and then the Acute Matte 'D' screens. Apparently the 'D' screens have a bit more contrast and are easier to focus than the non-d screens. As well, there are about a dozen or more iterations of the Acute Matte Screen - microprism, split image, both, neither, etc, etc.
But the Acute Matte screens are a HUGE improvement over the standard Hasselblad screen, no question. Good luck.