Help!!!! ...PC or MAC?

Lucky for me, my computer’s “motherboard” (whatever the heck that is), broke last week and now I’m faced with the major pain of buying a new computer. I’ve looked at a bazillion customer ratings sites and can’t seem to decide if I want to fork out the money for a Mac or if I should stick with my trusted PC. I heard that the Mac battery lasts longer and that the “blue screen of death” (blah!!!) won’t happen, but then again I know how to use my good ol’ Dell practically in my sleep. What should I do???