Yes, they get many more maneuvers known and readied than the rest. But they also have by far the worst recovery method of the three (by far - I really cannot emphasize this enough), and I'm unconvinced that it really offers that much versatility, really. Most of the time both the Warblade and Crusader will be plenty fine on versatility. Really, the trick the Swordsage can pull that they can't is the things Shadow Hand gives him.
AC's not really that important, though.
How so? The Wis thing adds an ability for them to be decent, it doesn't remove one. The Warblade gets some bonuses for a decent Int, but it's by no means mandatory, and the Crusader doesn't even have that to worry about - both could be just fine with dumping everything but Str and Con. The Swordsage can't.
Skill points are true, though the Crusader and Warblade are at least decent with those, for martial classes. Larger number of schools is not really that much of a bonus, with the way the prerequisites work out. And the capstone is solid, but not even half as good as the Warblade's.
No one will miss Stone Dragon; I believe several people (myself included) have mentioned that. Diamond Mind might be the most powerful offensively, but the utility options in Shadow Hand just aren't available in other disciplines.
This, I absolutely agree with.