Yes - I agree - it's something of a tradition with me to just list my Top Five projects. But it seems to me like the blogosphere / Twittersphere is a better place for that discussion than my small blog and Twitter following, especially since I spend time on things other than open source software.
In fact, I'd think this board is a much better place for discussion than my blog. So ... what do you think are the biggest issues in the open source world? I'd say they're
1. The Oracle lawsuit against Google, 2. The sale of Novell to Attachmate, and 3. The forking of OpenOffice.org.