I haven't had that many Eel Hotpot, but I must admit this is the best I've had by far. This is a down to earth place close to the city centre, it isn't the cleanest most hygienic restaurant I've been to in Vietnam, but it's what I love and expect. Total bill was about $25 AUD!
BBQ Goby Fish (Ca Keo Nuong) + Tamarind fish sauce - Delicious !!! especially the sauce, drools
that's an Eel's tail, don't be disgusted heheheh, it was delicious.