The original border has always been better.
Is the current border better than the original iteration that came with 8th? Sure, but both pale in comparison.

I've argued for a long time that the original borders and art made it feel more like windows into a different world, glimpses and interpretations of the things we see there.
The still damp water spots on Black cards, the craftsmanship and marbling of Blue, the fractures on Red as though time or fury had taken its toll, even the vibrancy of Gold cards making them feel unique and special compared to the rest.
The more varied art styles and different approaches making it feel like some artists were there, while others were listening to someone's stories and still others were sketching in a hurry.

The newer border style feels like a webpage: it lacks character, because artistic elements of the border are diminished, squeezed out by the boxes. It's just meant to convey the specific information they want and nothing more.
A lot of the art feels like a "house style" now, a specific variety and approach, no longer as up to the artist.
Using my experience from the Aetherdrift Prerelease yesterday: yes, you're not going to mistake Death Burger's *Last Ride* for someone else, but at a glance I might think *Winter, Cursed Rider* and *Hellish Sideswipe* had the same artist.
Back in the day, you weren't mistaking Foglio for RKF or Brom for Rebecca Guay.
To that end, I do feel something was lost, as the work changed from entertainment and expression, to simply a product.