the contenders for that lush Lexicon sound seem to be:
* Exponential Audio - both plug-ins sound glorious, not cheap, not meant to be. Beyond my budget at the moment, but high on my list!
* Relab LX480 - the only algorithm I've really listened to is the random hall, which is the one many of us are looking for anyway, and it is awesome. I tried the demo way back before it was released, and it is awesome! I'm seriously considering selling a body part to get it while it is on sale.
* Valhalla DSP - it is tempting to say "for the price" but in fact I think these hold up well to their more expensive brethren. Since I was specifically looking for the Random Hall I compared the Vintage Verb to the LS480 Lite and the differences were subtle. Still not sure I could reliably pick them out in a blind test.
* UAD Lexicon 224 - no random hall, but dang, this thing has that lush, detailed, gorgeous Lexicon sound. I don't know that I'd buy a UAD2 card to get the 224, I would buy one to get the Plate though!
So what do I use? Mostly I use a PCM-90, which has the random hall algorithm, and it sounds great! I plan to pick up the Valhalla plugs (probably all of them) over the next month or so, and then I'll struggle over the EA vs Relab.