I feel RnR is a much better coaster.
Yes, I also feel RnR is much better. For me, a coaster has to do one of two things: be a very thrilling ride, or a very entertaining ride.
There is really only one thrilling "rollercoaster" on property for me and that's RnR. It isn't all that exciting to look at, but the audio really nails it for me. The anticipation of the launch with "ROCK AND ROLLER" and the countdown followed by the launch to 60 mph is just so much fun. Then the inversions kick in, and those are a blast.
Big Thunder is not a very thrilling ride, but there's so much to see while you are riding that it more than makes up for it. Space Mountain used to be fun because of the scenery, but now it just feels like I've been in a bar fight afterwards, and that's never fun!
Hopefully the refurb will take care of that.
Everest is neither of those things. The queue itself is very pretty, and the mountain is nice from a distance. But the problem is the illusion for me is shattered because I can see things that do not fit the theme; Spaceship Earth and hotels to name a few. It loses something. Then there's all the blackness. That can be fun, but only if the ride has lots of unexpected twists and turns, which it doesn't.
But, like you said, to each their own. For those who love Everest, more power to you. I just wish you could actually see that impressive Yeti even when its working. I've seen it on TV and it looks beautiful...too bad even if its working there's no time to appreciate it.