This sort of thing is what happens when you use some gimmicky, unintuitive naming convention for your buttons. I'm not much of a playstation user, but any instances that require pressing a particular button at a particular time annoy the crap out of me simply because knowing which button is where and what it does doesn't make immediate sense.
The A/B X/Y makes a lot of sense at least in English since you know that letter index increases as you move forward and to the right on the controller. (A/B being the lowest letters are on the bottom left). The fact that major buttons are also identified by sensible and readily visible COLOR (green go, red stop) on other consoles only further illustrates the asinine crap that is the Sony controller button system.
Oddly, I'm the exact opposite. The 360's button layout constantly makes me look at the buttons. I have no idea what I'm doing with it... or didn't, for quite a while at least -- I more or less got it now (since I've had my 360 for several months now). I don't find anything inherently intuitive about it -- it's never seemed any more coherent than any other random naming scheme someone could come up with. Colors don't help me when I'm looking at the screen, neither do letters, shapes, numbers, or anything else visual. About the only controller I can think of that quickened the learning curve was the one on the GC (where the buttons were all different shapes/sizes, so I didn't have to depend on my eyes to figure out what I needed to press).
None of them are "intuitive" really -- it's all a matter of learning the locations and then there's nothing to it. Depending on color coding or anything visual essentially means you already failed -- you aren't supposed to be looking at the buttons while you push them. As long as they are all different (be it a circle or a letter or a color or a number), they are about equal -- there is a learning curve regardless...