Marvel has had some okay games in the past, but the Arkham games are clearly of a much higher caliber. They stand tall among even among the very best video games.
The most positive thing you can say about even the best Marvel games is that they're good for liscenced games. Arkham Asylum and Arkham City are just damn good video games, and they would be just as good even if they weren't related to Batman. I have trouble saying the same about many Marvel games.
See, I don't have the same kind of trouble you have.
Yes, Arkham are fantastic games. But they're just as much "licensed games" as anything Marvel-related, so I find this complaint a bit hypocritical.
Marvel games (some of them, anyway) are/were unique and groundbreaking in their day; many still stand the test of time.
Spidey 2 introduced a whole new element to free-roam cities by allowing you to travel not only in the streets (GTA and other free-roamers already paved the way for that), but all the way to the rooftops of the tallest skyscrapers as well. All while traveling by webslinging and wall-crawling. No other game does that, except of course, for Spidey sequels.
X-Men Legends and Marvel Ultimate Alliance were unique and groundbreaking in their day as superhero RPGs. Certainly, MUA2 looks hopelessly outdated in an era where City of Heroes and DCU Online are the norm for modern super RPGs, but a few years back, XML/MUA set the RPG standard.
The Punisher and XMO: Wolverine games were also fairly unique and groundbreaking, and received lots of critical and fan praise (and face it, those games are a *lot* grittier and more adult than Arkham, even if they're not as engrossing or fun as the latter). TIH: Ultimate Destruction....same.
I'll grant that Marvel hasn't exactly put out a high quality game for several years, and certainly nothing groundbreaking to attract critical acclaim, since 2005-2006 (MVC3 shore is purty and all, but it's nothing new --- still just another fighter whose "3" belies its lack of real originality). But I sure as hell wouldn't call the games that were coming out back then just "okay."