Google Docs works fine for me; Why should I bother to switch? 

Many content creators and publishers use Google Docs or similar tools to create, edit, and collaborate on content before publishing it on WordPress. This workflow is inefficient, slow, and frustrating because it forces publishers to take their content out of WordPress. We encourage a new approach and invite you to try a newer, faster, and more efficient publishing workflow where you create, edit, collaborate and publish blogs and news all from within your favorite blog editor — WordPress.

This side-by-side comparison will help you understand why Google Docs is not the right tool for your Publishing Workflow.