In my opinion, these are the two biggest videogame magazines. And though they share some similarities, they ultimately appeal to 2 different types of gamers.
I subscribe to gameinformer, yet I like Nintendo Power much, much better.
The reason? I basically only play Nintendo games. Nintendo Power is written for gamers who invest mostly in Nintendo, because the magazine only covers Nintendo's products. I've played all the systems and even owned a few PSPs, but in the end I'm only a loyal fan to Nintendo. Heck, all I own is a Wii and a DSi, I don't even play my computer games!
But that's not the only reason why I adore Nintendo Power and simply tolerate gameinformer. NP has a much cleaner layout, in my opinion, and is slightly better in quality when the two magazines are being compared.
I also find that reviews and the scores given to games in Nintendo Power are usually more accurate, or in other words after playing the games I usually agree with the scores given in NP more so than the scores given in gameinformer.
And another thing: gameinformer nearly ignores the DS, usually shoving it clear in the back, sometimes without any game reviews, and without a good amount of articles geared towards the system.
But I don't mean to bash on gameinformer. While NP only has to deal with Nintendo products, gameinformer has a much larger task of covering data on ALL videogame systems/consoles.
I also like The Official Nintendo Magazine, and wish it came out in the US.
In the end it all boils down to this: If you like Nintendo, invest in Nintendo products, and mostly only play Wii and DS, then Nintendo Power is extremely usefull and very much worth the money.
If you play ANYTHING else, say Xbox360 or PS3 or even PC, then gameinformer, for the most part, is written with gamers like you in mind.
What are your opinions?