B1 must be importanter.

[luffy620]

Base 1 will obviously always been seen as the "important" base. It's the biggest, stands on raised ground that is harder to attack, and has a inside bunker, which you can teleport into when your team has said base. I remember all the laming/killing went on around base 1 about 70% of the time, and then the last was put into the occasional "hq raid".

Some ways we could make Base1 more important could be:
Make it bigger.
Make it have some kind of advantage (healing and ammo as sam said)
Place turrets on top of it.
Possibly give it the ability to warp you to any other base.
Give it a dropship warp
Let you go back to hq bunker from b1.
More exp/bounty raising to take the base than other ones.

Theres some more but I think you get the idea. Everyone uses icira because it is the most populated planet, and hq's get raided because it is the fastest way to get kills, as players are usually not at the best right when they get out onto field, especially when mortars and photons are shooting at you. Give some edge back to the actual game of iricia, or move to alpha, that should be the laming planet to tell the truth, its FFA.