I'm sorry, but Linux distros have worse forced upgrade policies than XP. How well does Ubuntu 13.10 run on 10 year old PCs with 10 year old graphics hardware? Not well. How does it run on 5 year old PCs? Not well either. But that is your only real option for Ubuntu since they only support releases for a YEAR AND A HALF! Ok, the LTS versions get 5 years, but still that's much shorter than XP and the system requirements move forward with each release for the GUI.
OpenSUSE, Cent OS, Mint all of them are the same way.
If you're running a PC that is 5 years old or less with XP, quit the whining and goto Win 7 (the new XP for corp) or 8. If it's older than 5, get a new PC because you've probably replaced your TV and got a new game console in that time which cost about as much if not more.