Did I ask a dumb question here....?
I don't think the Mark 5HD has been around long enough for a true, fair comparison. On snipers hide, their has been some good discussions concerning the Mark 5, right now the balance is love it or hate it. On the hate side, you have guys stepping down in quality of the optics they normally buy and are not impressed, then guys that bought and liked. I purchased a 3-18 Mark 5, I never got around to using it and ended up selling, looked dang nice and I wanted to give it a go.
You also mentioned you handled the Leupold and feel glass as good or better, were you looking through the newer version F1 Atacr's,or the older one? I can say, I have both the NF F1 5-25 and 7-35 and glass is superb, along with tracking.
It is a wash on scope travel between the Mark 5 and the NF 5-25 Atacr, 120moa to 125(NF) moa. The 7-35 NF has 100 moa of travel, which one can compensate for by using a 40 moa scope base, or if it is integral, buy a mount with the desired cant. With the 7-35, I can tell you a target at 2K looks like it is at 1k on 35 power, and I love to spot my own shots, so a big deal to me.
I know absolutely nothing on the Beast, took too long to come to market at too high of a price for me, I do not ever look at opinions on it as I will never own one.