I feel pretty much the same, though I never finished II. But the first game... I beat that over and over, 100%'ing numerous times, enjoying every inch of it.
I'm not a fan of Square or Final Fantasy, but Kingdom Hearts just felt right. II felt good as well, but I never put the time in to completing it, and by the time I had considered going back, I looked ahead at all of the "other" KH games and got depressed, sinking my head down and deciding I'd wait for a brighter day.
That day has still not, and may never, come.
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ziggie ziggie wop wop