Up to 0.3.014, Ojaveda had a real disadvantage for beginners -- very unbalanced and different monsters (either rats with too low experience gain, or rogues with too high defense), Enkidukai just had to leave Ojaveda sooner or later, and rather far, to train skills.
Since 0.3.015, Ojaveda is the only area to sell hides, no other merchants are known so far. And Ojaveda has merchants with more valuable quests for those beginners who don't like to fight too much. Furthermore, the "cute" and "exotic" factors seem to make it easier to find friends of the same race...
And the final trump: Th' Broken Door is much friendlier and more suitable for a big party, Kada-El's tavern can be cramped (just try to sit on a chair) and is quite dark.
So I would say, Ojaveda now has some serious advantages over Hydlaa... But neither town can exist without the other - inhabitants of both towns will need to travel to the other now and then. No need to cry about Oja!