I don't see either of these establishments mentioned much here on CH. Ramenya closed its Olympic location a while back, not sure exactly when, and in its place opened Dosanko Larmen (see http://midtownlunch.com/los-angeles/2...). Apparently Ramenya and Asian-Ya have merged, with its menu a combination of both places.
I went to Asian-Ya a few months ago and thought their sundubu was pretty good for a non-Korean non-sundubu-specialty shop. The place was filled with Japanese expats. Now the place has undergone a makeover, new tables and chairs, and bar counter and stools. The sign at the top of the storefront still says Asian-Ya, but the logo on the glass windows say Ramenya. Very confusing.
Tried the "Asian-Ya Tan Tan Men" there today (there's also a regular tantanmen on the menu, I assume from the Ramenya menu). It was pretty good. Nice, chewy noodles. Decently spicy, almost creamy broth (menu says sesame-based, so maybe the creaminess is akin to the creaminess of tahini).