What is the best OS to install on a ps3?

[NoQuarter]

I thought you could virtualize xp on there...
I remember seeing a vid a while ago,could be wrong though and don't feel like checking.
Never tried YDL but am pretty happy with xubuntu on the ps3.It will be better if more programs are written to take advantage of the SPU's.Good thing about ubuntu and linux in general is that there is a ton of documentation,ubuntu's community is very friendly and has come to my rescue many times (especially with my macbook).

I actually installed xubuntu after getting advice from Triv1um,It's lighter on the resources than gnome or kde and you can easily install programs from either window manager.
Hope you have a HDTV though, cause ps3 linux is a pain to look at on SDTV.

EDIT:
I lied,I did feel like looking :P

Here: