i would get infamous - sandbox games have always long aingleplayer and there is always a lot to do just for fun.
Uncharted is way too short especially for 60$ pricepoint.

In England you can get LBP for £8
Uncharted for £14 i

I dont know what that converts into $$$$ but its certainly chepaer than 60$

Uncharted doesn't meet this requirement and i don't think LBP does either unless you have fun online and creating levels(which to me got boring fast)

LittleBigPlanet. First of all, its the most enjoyable game on the list, and secondly, it has over 750k levels (and counting). It'll surely last you longer than the others. :P

Overall, I'd say LBP is my favorite out of the three, followed closely by Uncharted, and then InFamous.

For those who care, I'd say InFamous falls around #7 among my favorite ps3 games:

1. LBP
2. MGS4
3. Uncharted
4. Demon's Souls
5. Ratchet & Clank Future: ToD
6. Valkyria Chronicles
7. InFamous
8. Either HS or SFIV

Killzone 2?

Again, for those who care, this is my order (I don't have inFamous):

1) MGS4

2) BioShock

3) Uncharted

4) CoD4

5) Killzone 2

6) LittleBigPlanet

7) TES4: Oblivion

 8) R&CF: Tools of Destruction.

You!!! you're not wanted in this thread music!! Begone!! *Rainbow Banish*

I own infamous And let me tell you it is up there with the best games of this gen:

1. MGS4
2. Uncharted
3. inFamous
4. Bioshock
5. Mass Effect
6. SF4
7. LBP
8. Killzone 2
9. SMG
10. V.C.

Well I don't have any of the games (nor a PS3), but infamous should be your obvious choice simply because the other 2 are older games and you can always pick them up later at a cheaper price (new/used) compared to the newer game, infamous.

I'll give my vote to inFAMOUS.

Did your dad really specify you had to buy an exclusive game? If you went back home with a multi-platform game would he make you return it? How does he know which games are PS3 exclusive?

for length and replayability, LBP is probably your best choice if you like platformers.