When you have a chance to visit, order the one with tender pork and add spring rolls, with spicy soup base, but start with mild. Just in case you don't speak Chinese and the cashier doesn't speak English, print this out 小鍋豬腩肉米線加春腃. I can't risk you ordering anything second best due to language barrier ^_^.
I've been singing praises for the noodles, but everything else on the bowl makes the perfect dish. The soup base? Deliciously spicy with a bit of a tang, I normally slurped my bowl dry. The meat? Tasty, tender and juicy. The Chinese preserved vegetables and minced pork added extra flavors, the beansprouts are great for the extra crunch and texture, the beancurd sheets fooled me into thinking I am eating healthy food (haha!), and the spring rolls...they aren't ordinary spring rolls. They are gloriously chewy, echoing the elasticity of the noodles. Plus, they're totally affordable! HK$25 for a giant bowl, add HK$6 for the spring rolls.
http://mochachocolatarita.blogspot.com/2009/11/nam-kee-spring-roll-noodles-most.html