To be honest, I'm generally not a huge fan of going out to a restaurant to order broth or a soup-type dish. But, I'll go out to Sansotei ANY DAY. The ramen here is simply amazing. Their broth is rich and satisfying, and the noodles are delicious. My favourite dish at Sansotei is Tonkotsu with thin noodles. The egg is creamy and I love the fungus in the soup. The fungus is crunchy and adds some texture to the ramen. My second favourite dish is the Spicy Tan Tan, which has ground pork. Although it can be quite spicy, the spice isn't overwhelming.
None of the ramen disappoints. I've tried almost all of the soups on the menu, and they're all incredible. You really can't go wrong. However, I would recommend sticking with the soup and foregoing the dumplings. They aren't anything to write home about.
The service here is always excellent as well. The servers are attentive and accommodating, given the long line ups.