Ubuntu I think. I would still recommend it to people who do not wish to do anything like partitioning though. The live CD is also worth taking a look at if people just want to have a look around the OS without installing anything.
Yeah , I'm gonna dual boot Ubuntu with XP once I get my disc in the mail.
I don't wanna download it because of my OCD and I want the disc so I can install it on any computer I wish without going to the site. ( I know pathetic huh? Hahaha )
I got 5 harddrives so i took my data drive and put the data in a data folder on a diffrent hard drive and installed it there, i didnt find many problems installing and removing it was easy... on XP though it was a nightmare to remove the GRUB loader.