Do just like to disagree?
Anyway, let me clarify a few things for you so as not to be misunderstood. I actually do not care which has the better reverb on a personal level, I ave no brand loyalty or expectations or whatever, I am just telling you 1st and foremost what I have experienced in my own studio with both of these boxes...not impulses or someone's posted tests and files on the internet.
The PCM 96 is ultra smooth and silky, it is the 1st reverb where I can run it 100% wet and it sounds amazing, yet does not destroy the original source or sound like it is in a tin can. This unit is not comparable to the 91 or 81, it is a new beast, and while it has that signature sound, Campus was right in his post, the older Lexi's do have a fair bit of noise when pushed. This unit does not.
It is very clean, especially when run in digital mode (connected to digital I/O). I have not heard reverbs this good...ever. That is just me.
The H8000FW is also equally as awesome, but in a different way. It is much more effecty. I would go so far to say that it very well may be the best multi-fx sound design tool ever made. Its reverbs too are awesome, they are on par with TC, they are on the TC cleaner side of the scale. What makes the black hole verb cool is that it is made up of complex effects processes, not just reverb. The reverbs in this unit, while good still are not quite as awesome as the Lexicon. I am not saying they suck or are sub par or anything, just that to my ears and mixing, the lexicon is better at pure big reverbs.
Why is that? Well the Lexicon is 1st and foremost...a reverb, yes it has some multi-fx that the H8000FW has, but it is a verb unit.
The H8000FW's reason for being is that it is a sound design, alien, twisted multiple effects box that does pitching, looping, delay and such like no other box out there.
Both units are amazing. But if someone asked my which to buy, it would come down squarely on you own needs and desires.
Do want the current market creme de la creme of Reverb which can also do some multi-fx if you need, or do you want the monster multi-fx device which can also do some decent reverb.
Now the H8000's reverb is light years ahead of anything sub $1000 on the market, but it is still no Bricasti or Lexicon or even system 6000 for that matter.
Now if you still want the power of public opinion I offer you this:
I re-read this thread and to paraphrase what I heard is that: Many people do like and use Eventide Reverbs and that they are indeed close to or on par with many lexicon verbs. The H8000 is a special box that is unique! It is cleaner than the PCM 81/91 series, if you were deciding between an H7600/8000FW and one of those older lexicon units I would steer you toward the Eventide without delay or remorse.
Next...go to any pro audio forum on the internet and search PCM 96 and H8000FW. What you will find 90% of the time is that when folks are endlessly debating the "Ultimate Reverb Dream" it comes down to 2 units and 2 units only...Lexicon PCM 96 and Bricasti. No one mentiones the Eventide, TC, Kurzweil or anyhthing else, it is these 2 units with evangelists on both sides.
Now again, talk multi effects and you will find many debates over the TC system 6000, Kurzweil...I forget the name, and the Eventide boxes, with the H8000 usually edging to the top.
So how does this relate to all of this? I would advise you to make up your own mind once you can hear all of your options preferably in person. If you cannot then you need to seek the advice of peers and elders (not age wise, but folks who are actually working day to day in the real world of recording...professionals). Why? well an opinion becomes more valid based on day in and day out experience. Maybe it will work for you, maybe not.