Hakatamon, the noodle and sushi shop adjoining Uwajimaya in Beaverton, has recently added hakata-style ramen to their menu. It compares favorably with the hakata-ramen of Shin Sen Gumi. The pork was some of the most tender I've had in a bowl of ramen, breaking apart under its own weight as I attempted to pick it up with chopsticks. They also had chasiu ramen on the menu, presumably for those who want even more porcine action.
The noodles had a great firmness that I liked (an aspect I really like from SSG) and while the broth got to be a little too rich and salty after a while, I used it as an opportunity to order umeboshi onigiri to help balance it out. Needless to say, lunch was a bit carb-heavy.
I'm hoping this springs up even more competitors. For all the pho shops around town (or even bun bo Hue!), I think ramen would do equally well.