So play P&N!! I personally think the grav tree's the best (nudges SJ, wink wink
) You may find that the ship speeds are superior to anything else out there, plus they have superior tractor/repulsors, which can be the nail in your opponents' coffin when you've already got the weapons range advantage.
But the best of all is the planetary mega weapon - nothing quite like displacing the gravimetric force of your planet onto an enemy ship for a few milliseconds... heeheehee.