Depends on how much money you have, and what your professions are.
In hindsight, I would probably choose scryer over aldor if only because of the shear amount of arcane tomes and sunfury signets you get (used for scryer rep) over the amount of aldor equivalents. ESPECIALLY with the new SSO isle with all the dailies, you will find yourself inundated with scryer rep, and if you are anything like me, find it pretty hard/expensive to lvl aldor rep.