I'm certainly not an expert in optics, but I have learned a few things from those that are while researching optics for purchase. Naturally the best tool, by far, for conducting comparisons is your own eyes, but can't always be arranged. Fortunately some dealers will send you 2 pairs of binoculars to compare yourself and allow you to return the runner up. I think the second best tool is the opinion of someone that has used at least some of the binoculars you are considering. There are several optics forums where the members are more than happy to share their opinions. Some clearly show brand bias and that may not be experience based so keep that in mind.
Sorting through all the HD, ED, XD, etc. labels can be confusing when comparing optics and is easy to get caught up in. Some of those labels have standards and some don't. ED glass has a standard of having an ABBE number between 80-95, which is a measurement of light dispersion and even that is meaningless unless the optics that use the glass are not optimized to take advantage of it. Some companies like Kowa and Vortex describe some of their models as having XD (extra-low dispersion glass) but I have not found any universal standard for XD glass. Swarovski, Leica, Zeiss, Leupold in additional to others including Vortex have used "HD" in in their optics and the marketing messages for same. There are no standards for HD glass, but whether the HD stands for High Density or High Definition I look at it as a lens upgrade over the prior or standard model for each manufacturer as in the case of the Swarovski SLC that was upgraded to the SCL HD. I don't think anyone, including Vortex, is claiming that their HD lenses are exactly the same as the Swarovski and I would avoid getting caught up in all the labels. All steaks don't taste the same just because they are made out of beef and all bins that have ED glass aren't the same either. I would look at the measurable specs like exit pupil, FOV, minimum focusing distance, weight, size, etc. as well as read comparative reviews and consider the warranties on each model you are considering.
I don't think you could go wrong with either pair you narrowed it down to but, as already disclosed, I have only used one of them.