After eating at several restaurants in the Little Saigon area, I have to say the SGV Vietnamese food scene (Rosemead, El Monte, San Gabriel) really sucks.
The Vietnamese food in the 626 seems to be heavily Chinese-influenced, and the quality of ingredients is not very good. Moreover, the variety of food is very generic. Many of the places serve pho, banh xeo, banh mi, goi cuon, com tam, etc... but when it comes to specialty regional dishes, can any kitchen in the SGV actually produce a decent bowl of bun bo hue, banh da cua, bun dau mam tom, bun cha, or banh cuon? I haven't seen any yet.
Does anyone agree that there is a huge dropoff from Westminster/GG/FV/Santa Ana?