There's no reason to write off a Mac. What few issues there may be are easily remedied. For instance, iWork from Apple contains 3 programs for $79. Keynote (powerpoint), Numbers (Excel) and Pages (Word).
Pages will open Word documents and it's amazing how close the formatting will stay. Also, Pages can save as a .doc file for use with others who have Word. You can copy all your fonts off your PC to your font folder on your Mac to ensure that the files you are migrating will retain their fonts. I installed the whole font suite of MS Word on my Mac at work to ensure that any .doc files I opened would retain the fonts used by others.

Of course, Numbers will open Excel and Keynote will open Powerpoint. But if you want guaranteed migration, just get OfficeMac.