I'm liking the idea of Naar Shadaa. It's not too hard to get your ship, and allows those of us with our main characters (That we also dump most of our cartel coins in) on Emp side to participate as well.
The main plaza area of Naar is neutral territory as well as not having NPCs that will squish you on sight, and I'm sure there's a few places where a party could be held. This could be a perfect way to celebrate the true meaning of Life Day. With no hate or violence. Just a bunch of people from across the galaxy enjoying their time together in a fun atmosphere.
Yeah it would bring more people to one spot as well, having the parties seperated would be boring to me personally.