Starting with Ibuki, eh? Good work. Bugger a shoto in his eyes, I say.
Note: I’m only talking about the way I play Ibuki, but don’t worry, I’m from SoCal. We’re all good.
In your particular instance, you really want to close distance mostly by walking. Not just blindly leaning on the stick in the direction of the target, of course, but more as a part of your aggressive poking regimen.
The regular dash I only use up close and in special situations, to hop through the enemy. The fabulous command dash is great for cancelling into from normal attacks, such as her mk (example: blocked lk,mk xx kasumi gake, throw). This is how Ibuki stays in the opponent’s ass the whole round.
You should also be using the 2-hit airchains almost exclusively, but not predictably. Jab-fierce is my personal favourite, but mix it all up to prevent getting stuffed.
The toward-mk overhead can get you in reliably, especially when chained from a back-mk. Also, the mk slide(offensive crouch or down-toward mk) can put you in a solid position to press the attack, but as with all characters (though ESPECIALLY with the ninja-baby) you must refuse to be predictable. You have a lot of options, and you’re often forced to use all of them in a single match. But hey, that’s why ninja get those big ass bags of tricks, da?
N - If all else fails, Rolento-Jab-of-Doom that ish down!