It would be nice to have new players start in regions where they will likely be able to put their estate. They don't know which realm is best, so why not give them a shot at the realm that will at least have an estate for them?
I suggest dropping new players, kinda like adventurers, in any region that has no knights, or that lacks estate coverage. Of course, exclude rogue regions.
How many other people think that their starting realm was the best realm they've ever played in? I know mine wasn't. I think my income was about 15 gold/week, and no opportunity for advancement.