Not too long ago, I did a comparison of just about every software reverb that had a demo available. Reverb X was one of my favorites- you can get some very rich sounding plates going, if that\'s your thing. The only problem I found was that it was veeerrrry cpu intensive with many settings, and some settings I couldn\'t play in real time at all (I was using an 866P3 at the time with 512meg RAM- I\'ve since upgraded). Also, with the ability to freeze tracks in Cubase SX2 now, I may take another look.
I strongly advise you, or anyone else, tajing advantage of demos when available and doing these kinds of comparisons.
ReverbX is definitely worth a look.
ReverbX is a very nice sounding reverb, but it is VERY CPU intensive if you use anything other than the plates. There are others that I think sound as good or better that are much less demanding, such as Sonitus (my new favorite). It has been my experience that it really depends on the material. I have not found a single reverb plug that is good on everything. So I try several and pick the one that sounds best.
I have the other verb from TimeWorks, the 4080L, which I really like. It is not as expensive and has a relatively low CPU usage. I believe you can download a test version which runs for a few weeks.
I use it in \"midi-mode\", in combination with FX3 SoundStage, TrueVerb ER\'s and RenVerb. For mixing down, nothing beats impulses, of course.
Mail me if you want to have my preferred settings (peter @ PeterRoos.com).