I have the LN LA Jack and really do like it and use it quite a bit. I'd definitely buy it again. But the plane that I seem to have in my hands the most is the LA Block. It's just so handy for so many things. The next purchase I'd make would be a #7. I don't use it as often as the LA Jack, but since I don't have a powered jointer (and I don't have any plans to buy one) the #7 is indispensable for me.
"History is strewn with the wrecks of nations which have gained a little progressiveness at the cost of a great deal of hard manliness, and have thus prepared themselves for destruction as soon as the movements of the world gave a chance for it." -Walter Bagehot