WoW on a purely level is nothing special, in fact, it could be another Everquest clone. But attach the name Warcraft or Blizzard to it, and they are golden. They are the ONLY game company where they can say "It's done when it's done." and no one will be bothered by it.
Other than the fact that WoW's "low poly count" and the like makes Everquest look like it was running on an Atari 2600?
The fact that they have "low poly counts" makes the game run on just about any hardware made in the past 6-8 years. That is one the major reasons so many people play it. I first played it on an 800 mHz Athlon Thunderbird with 512mb of ram.
I can play it at max graphics on an old dual core machine. As in, the machine was purchased in 2006, and has only had upgrades in memory and video card(it had onboard graphics)
Most games now CANNOT be played by the majority of PCs available. For instance, I can play WoW at it's highest settings with no problems(as I can with Elder Scrolls Oblivion and a number of other 'high poly' games), but couldn't even get Age of Conan to START. FunCo's response: Your graphics card sucks!
At the time(and probably not even now), an 8800GT that's factory overclocked does NOT suck.
Finally, WoW was done well as in it has CONTENT. It MAINTAINS
a large playerbase with the amount of content available and SOME linearity available to keep people on track. On the opposite end of the spectrum, there is Warhammer Online. It has a middling amount of content, but has large gaps in the leveling curve where there is little to nothing available, and ZERO linearity to help new players figure out what they're supposed to do, or where to go.
I will, however, say that I am NOT a WoW/Blizzard Fanboi/girl. I enjoy WoW for what it is. I've quit the game twice now, and have decided to return to the game both times. I've played other MMO's and have enjoyed things about them(Warhammer, Guild Wars, Star Wars Galaxies, Ultima Online, City of Heroes/Villains) but I just don't feel as involved there as I do/did with WoW.
Dislike it all you want. Don't mock those who do, however, or make uninformed assumptions.