I DON'T consider Adywan's revised editions to be "better" than the originals, and I doubt that Adywan would either.
As for watching and enjoying, that's a personal thing. There are terrible films that I personally enjoy, some of them I even enjoy more than certain great films.
But when using words like "better", important films also have to be judged by their role as watermarks for the time, place, and culture in which they were made, as it true for all works of art. It is simply impossible to modify - in any way - a work of art 20 or 30 years after the fact and do anything but diminish its artistic value.
Furthermore, it is virtually impossible to make such changes without those changes being obvious and clumsy... our brains are incredibly clever, and generally notice even the slightest anomolies in such respects. Why? - because the changes were made in a different time, place, and cultural context, and 99% of the time, it shows.
I have and enjoy Adywan's work immensly - heck, I asked him to color-time my Puggo Strikes Back (which he also did a fantastic job on). But there is no way ANH:R could replace SW, on many, many levels. Much like the SE, it is a fan edit - one could argue that it's a better fan edit than the SE, but purely a fun fan edit nonetheless.