Granted, OpenOffice may well never surpass MS Office, but to even be playing in the same league is a victory of sorts, given the incredible disparity of resources behind both projects.
And for your average person writing a letter, trying to calculate something with a spreadsheet, or put together a simple presentation, they absolutely are in the same league.
For me, OpenOffice wins hands down, because it runs on Linux, which is the OS I choose to use, and is much more versatile and repurposable, being open source. I use bits of it for LiberWriter.