I know this question was a page back or so now, but I want to answer it.
I can't speak for VH2 because I've never played it, but as far as White Knight Chronicles goes I'd advise you to stay away from it. It's a poorly designed mess.
They used this as a promo shot. I think it was even on the back of the box when I bought it. It speaks volumes, and I should have listened to it. The game has poor graphics. The HUD needs work, as you often end up with stuff all over the screen like this
The characters aren't great, the mechanics are slow, and the load times are irritating.
The last one is the real killer, because when you go on a mission, the areas you go to actually consist of many
very small areas linked together by yet more loading and arranged like these
so you'll be doing more loading than exploring. Especially as to get top ranking on some of the missions you have to run past all the mobs in an area getting wailed on the whole way to get into the next zone so you can complete exploring before you kill x of y, or something.
I nicked those screenshots from youtube plays because I don't want to put my PSP through that torment again
I admit that I never finished the game because the loading times and poor graphics bothered me so much, but I can't imagine it got much better. I have to think your money would be better spent on just about anything else