EDIT: Also, I suppose this begs the question of "what would your top 10 look like if you replayed em all at present". And further, "should a top 10 list be based on the game itself, or the players experience?". Veed-eee-o G-aaaaaay-mur f-eee-los-if-izen, watch out.
I replayed FFIV recently and was kind of let down. It used to be in my top ten but now I wonder if I will ever replay it fully again. It was still fun but just not great. Opposite happened to FFV where I had forgotten how fun the job system was.