What is the best\most compatible Linux release?

Miscellaneous Forums/Linux Discussion/What is the best\most compatible Linux release?

Knowing next to nothing about Linux, I'm wondering what the best version to install on my PC (dual boot perhaps) is... There seems to be a large number of choices. Does it matter as far as compatibility goes?

I saw a book on RedHat Linux for $19.95US that included 2 CDs (bootable!) but wondered if it would be the best choice.

Any help appreciated!
Russell

p.s. Are there any words of wisdom about dual-installing Linux with WinXP I should know about?