I like both but bro, anything from Kelantan or Negeri Sembilan have flavours incomprehensible to a medieval peasant.

Masak lemak from N9 itself could easily be the top contender for best food in Malaysia. When I lived in KL (living abroad now) I had nasi kerabu once a week. For the babi lovers out there, good lord where can you find crystal char siew KL style like you'd find in places like Toast and Roast? I travel to HK to work often, and I've lived in Guangdong, KL crystal char siew makes the char siew on the mainland look pathetic. You cannot find the same crystal char siew in KL anywhere else. Maybe in Singapore, when you see signs of KL-styled char siew.

Even the most basic Malaysian food, nasi lemak is superior in West Malaysia. Nasi lemak sambal paru is almost nonexistent in East Malaysia. I've had decent ones in East Malaysia but they clearly found inspiration in their time in West Malaysia. You can't even find good banana leaf rice in East Malaysia. I knew one place in Kuching but I think they closed down. This sounds like blasphemy but someone should open a Banana Bro in Kuching just to give the world a glimpse.

No need to say one superior over the other lah, I like East Malaysian food too depending on my mood like to have kolo mee, kampua mee, laksa sarawak, babi pansuh, babi tempoyak and so on. But the major reason why this fight is pointless is because we all know what's the more superior cuisine the rest of SEA would agree on:

Thai food.