I was able to 2 man the first room on my first try, by drawing all the aggro I could and having the W/E use Sliver Armor to chew through the dredge along with some smite (though Putrid mightve been better).
Ive been thinking over the different areas in my head and have decided its almost certainly possible to 3 man Urgoz, and if not, 4 man should be a breeze.
The first room features spirit of disenchantment, which can either be A) spiked down [not recommended in larger groups] B) interupted [ditto] C) dodged [not really an option] or D) covered through. Air of Enchantment should allow enough spamming of enchants on the tank to allow him to withstanding spirit of disenchantment easy.
The real trouble with enchants comes with the blood drinkers, as they kinda use Strip Enchantment... elsewise Spirit Bond wouldve been the perfect counter to them. Here I suggest taking small groups, spreading out so each person is in range of the Blood Drinkers, but not clumped together. This will reduce their ability to spike.
The Thorn Wolves are a joke, of course. An earth ele tank could handle them, or anyone with a backline of Spirit Bond + Prot Spirit, really.
The locked bridge would be easy, theres all sorts of ways to kill them. It does nearly mandate rebirth, though. (what a pity!)
The hardest parts would likely be the Warden rooms... the first one is easily avoided by only sending two people across. The second can be done pretty easily with a Sin teleport on a character capable of dealing some hurt. The third is a bit tricky, but perma SB/OFlesh with EOE/Sliver/Putrid and Dolyak/Ward of Stability really just makes it a joke...
The room immediatly before Urgoz is just a matter of making sure you dont screw it up, really.
Urgoz himself dies to Edge of Extinction in a matter of seconds.
See what I mean about maybe 3, definatly 4 (with ease)? Does anyone have any suggestions on specific builds? I was thinking E/A Mo/x R/Mo or W/E A/R Mo/x or other permutations... a pair of A/Me's can of course put up something like 1 minute 40 seconds of 'invulnerability', which would truthfully be a ton of fun to play with.
Might should be a good idea to include a single character capable of ganking a Twisted Bark, for the middle Warden room (exhaust/weakness) and other areas (like the degen rooms)
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One a side note, people find the screenshot of a 3 man team at Urgoz difficult to believe. I am not standing on either side of the fence on this matter, but it is certainly possible that the screenshot which was provided was real.
When people point out that the party window is 'too black' I ask them to find a 0x000000 pixel in there. None. Now, try to do the same for the window with Urgoz's speech in it at the top left. Wow, there are several! [should you need a utility to do this, try the AutoIt v3 Active Window Info utility, it comes with the compiler and is handy for all manner of things]
Compare with this image, one that other people also said was 'too dark' to be real:

Meanwhile, it is entirely unchanged except for being converted to a jpg. Consider the unique lightning conditions and graphics settings combinations, please!
Please, do not respond to this part of my post if you are going to put up images of different file formats and try to compare them, with different lighting, graphics settings, etc... Ill just laugh at you, and make sure that noone believes a word that you say, unlike the other thread in which just that happened and /everyone bought it/.
Also, do NOT sidetrack this thread, I dont want it getting locked. Please stay on topic, and only post something which A) hasnt been said before B) is relevant.