Originally Posted by
Eurhetemec
It was once. When it came out it was amazing for that - the whole idea of leveling by questing instead of grinding mob camps completely revolutionized basic MMO gameplay (even if in the 42-50 and 57-60 ranges you might have to kind of go back to grinding at the start of Vanilla), as did stuff like food and drink that rapidly filled you up, instance-based dungeons that actually worked and weren't super-generic-seeming (instanced dungeons had been done before, but only AC2* had ever done them like WoW did).
Nowadays? I dunno if it's even top-5 in accessibility to new players. Certainly GW2, SWTOR and ESO are more significantly more accessible to new-to-MMOs players, and I'm pretty sure others rank ahead of WoW too, for new players. Even FFXIV which is a bit arcane is at least comparable to WoW for new players.
However, WoW is unique in that it has both a solid endgame, and one that hasn't been entirely consumed by elitism. I mean, it seems funny to say that, because there's tons of hilarious, awful, ridiculous elitism in WoW (just open up LFG and get ready to alternately roll your eyes and laugh out loud at some of the smug, pompous, schoolboy-ish stuff in there), but relative to say, GW2? Holy shit, it's like WoW is a super-friendly, super-welcoming game.
* = AC2 did a lot of stuff people traditionally attribute to WoW. However, I think it's fair to attribute most of it to WoW, because AC2 was a huge shitshow that hardly anyone played, due to it's amazing combination of completely unstable servers, hugely buggy launch (like, WoW alphas are infinitely more bug-free than this was at launch), and absolutely no balance whatsoever.