To me, it really depends on whether you have unlocked all the uchi PWP's that you might be interested in. If that's the case, I don't think missing one personality type is all that bad esp. if no one from that personality type is your dreamie.
But for me, getting a second town to experience more villagers definitely helped. At first I wasn't too fond of snooties, but once I got to meet villagers like Bree, Monique or Olivia I quickly changed my mind and fell in love with them and they escalated to "dreamie" status fairly soon.
I know I'm just giving you conflicting information... lol
But I think that it might be worth trying out another uchi just to make sure. If you don't like her, you'll be able to exchange her for Julian in the future (or some other smug).