I have 60 hours in my FF10 game.. I've completed most side quests..
I have 240 hours into FF8 .. I'm still on disc 3.. I guess it's all relative?

I have a lot of fun in FF8.. FF10 is fun but the music gets monotonous at times.. also it still plays when you pause (sigh).
However I still like FF10 a lot better than FF9.. I think the one place I like best in FF9 is Clerya.. that's it.. it's just a cool place.

The side quests in FF10 are ok .. but just seem busy work. I still need to finish cactuar village.
The Internation version had additional stuff in it like Reiku's story and Yuna's story added in. Perhaps they'll release FF7 and FF8 respins for for the Ps2 sometime.. I'll buy those for shear fun to play.
FF8 was pretty mind boggling when it came out, especially when they combined 3d characters and movies so smoothly.
As I said.. I wouldn't want to trade my FF10 away.. but I can see where some minor improvements would have made it more fun for me.
FF10 is hard in certain anoying spots.. that's what drives me nuts

Cyb