SabrinaX vs JA Perspective2 Graphene

Welp, I'm a little surprised Wilson has returned to the 2.4kHz dip.  This will give the illusion of extra detailed imaging.

As for the brightness, look at the off-axis response.  This is a speaker you can easily adjust by toe-in/toe-out.

PS - I am neutral on Wilson's overall.  I might even be a fan if they were significantly less expensive.

Why just these two?

I haven't heard SabrinaX but I heard Wilson's upper end model - I think it was DAW.. It was nice but I cannot afford that. I always loved sound of JA speakers, especially Perspective... Speakers from other brands are way too out of my budget or just meh sound. Another speaker I am smitten on is Gershman Avant Garde. I like small floor standing speakers to fit into a smaller living space.

I like small floor standing speakers to fit into a smaller living space.

Add B&W 804 D4 to your list. 

I never had connection with B&W speakers sound. They are beauty to look at but the sound never did it for me for some reason.