You ask for analysis comparing WoW to other MMOs out there, but simply put, those articles are too simple. There's no complexity to an article about how LotRO MoM expansion will affect WotLK release. WoW isn't going to feel any pain from that release...but neither is LotRO. They each have their market of players at the level cap whom are eagerly awaiting the expansion.

You can either ignore the 800 pound gorilla in the room - which many commentors here are advocating - or you can write about it. Massively has found a decent balance. If you want to visit sites that completely ignore Warcraft, go visit MMORPG.com or something.