I think the original is fine...
Your stance progression is a modest improvement, your maneuver changes is hard to understand w/o the table. I see no reason to push back the "+Int to something" features. I like Uncanny Dodge, it's actually interesting, unlike another boring +1 bonus (and if you think +1 save vs. fear is anywhere near as good as +1 AC, you're nuts). Speaking of boring +1 bonuses....I see no need to give WB weapon training.
I don't particularly like this whole "dead levels" fad where people feel compelled to fill up every single level with something. Even if that something ends up being a meaningless little thing no one ever cares about. Having a ton of dead levels is certainly bad, but the other extreme, filling every level just for the sake of it...is the other extreme. I would rather (spread out evenly) over 20 levels get 14 really awesome abilities than get 20 weaksauce to mediocre ones. Quality > quantity.
That being said, if the warblade's getting a maneuver readied or new stance, or even to a lesser extent if he's so much as getting a maneuver known or a swap-out, it's not a "dead level."
That's the other thing that annoys me about "dead levels" -- they (the writers of the original WotC web article on the subject) claim the 3.5E cleric and Sorcerer have NINE_FREAKING_TEEN of these so-horrible "dead levels", because...they don't consider spells per day gained as a "class feature." So to them, Sorc gets a familiar and cleric turn undead and then...those poor, poor bastards have nothing to look forward to. *eyeroll*
You wanted my thoughts, sorry. They tend to come in bitter ranting format.