ET is a really enjoyable game if your an Indy fan and a gamer. If your both of those things, it's a must.
I rented it on PS2 when it was first released and I own it on Xbox.
Apparently the best version of the game is the PC version. It's graphics are sharper and it's far less buggy then the console versions. It's score from reliable game sites gets roughly a 7.8/10.
The Xbox version usually comes in 2nd. The console versions seem to suffer from a lot of bugs such as freezing up in certain parts, characters clipping into doors and walls, some muddy textures, and strange music bugs. The Xbox version of the game is indeed playable, but you may run into some trouble once or twice throughout playing the game from beginning to end. It roughly gets about a 7.0/10.
The PS2 version, though I don't remember playing it personally, has so many bugs that it's almost unplayable and flat out ugly. So you're not the only one. It's the worst version of the game roughly getting about a 4.5/10.
So the prettiest best version is PC all the way. But if you're not a PC gamer like me, I suggest the Xbox version if you could find one. The graphics are MUCH better on Xbox even though it does look dated.
PC:
Xbox:
PS2: