For me, I'd say Fallout 3. It's a great game but when I beat it, I was DONE with it!!!!!

I didn't like getting killed at random moments when exploring and the long walks. I also hated the over use of enemies. You fight off like 3 super mutants and then you think it's over but here comes another 2 more

Heavenly Sword

Hmm...

Good question. I would say Mega Man ZX unless you're just going to play it over and over.

Portal. 3 hours and nothing else. But they're are some of the best 3 hours you can spend

Pheonix Wright games.

Does online multiplayer count as replaying? If so then Star Wars The Force Unleashed.

Portal and Ico. Both still fantastic games and I recommend them to people regardless of the lack of replay value.

Oh, yeah, ICO too. But Portal more because it's better (at least for me) and shorter

Portal, Fallout 3, and Twilight Princess (God I loved Twilight Princess but every time I'd think about playing it again I just wouldn't)

The Grandia Series, i love them but the lack of sidequest and Xtras made it very linear