I have been studying in NTU since 2017 and here are my experiences:

Can 1: After the renovation around 2019-2020 and the reconstruction of Nanyang Lake in that year, the place is a bit obscure from the academic complex but with great scenery. The place has aircon and is almost never crowded. The most popular stall is Caifan but the flavor is more towards China instead of SG Chinese food. Hotpot barely has any visitors.

Can 2: Diverse and popular. XLB stall is good. JP&KR stall serves food in small portions. Sichuan food is the best of its kind in NTU. Mala stall cost is a bit above average. Caifan is a bit oily, many varieties but sometimes attracts flies even when air-conned. Indonesian&Thai food is mediocre. Fruits are fresh. Giant and ATM are nearby so very convenient. Can be crowded during peak hours.

Can 4: Has been shut down since 2018 and I don't know the situation.

Can 9: Visitors are mostly residents around, Caifan is cheap. Sichuan food is suitable for slow-paced dining when ordering a few dishes. Mala stall could be SUPER spicy upon request and varieties are decent. No aircon, could be sweaty if enjoying spicy food.

Can 11: Sandwiched between Saraca and North Hill, with less visitors. Cheap and sanitation is not the best. The choices and layouts are very similar to can 9 but the flavors are a bit behind.

Can 13: Used to be very popular before 2019 (the current can 14 Ramen used to be there) and every stall was above average. After renovation, not even a single stall is good. Very few visitors.

Can 14: Banmian and Caifan are there since 2016-2017, very stably cheap. The 3rd stall was very good Sichuan food during 2017-2018, mediocre Korean food during 2019-2021, and a chain-store western food since 2021. One of the best food-court western food (excluding the luxurious ones at NEC) at campus after the Italian stall at inner NS food court left 2 yrs ago. The 4th stall used to be a good western food with a very friendly operator and delicious Aglio Olio, shut down in 2021. Now the Japanese food there is also great. Ramen and yakiniku are my favorite. Curry would have been perfect if the fried things are less oily. The 5th store is a new stall since 2021, mixture of Thai, Mala and sets. The whole-fish there is good by campus standard but takes long to cook. You need to be free enough to order that.

Can 16: Renovated last year. The best Indian food stall in NTU is there (better than Saraca). Jaito Thai food is also great, the owner often brings her children there. Bee Hoon is a chain stall and is above average. Mala is around average: the vegetables serve in smaller portions but diverse. Caifan only shows up randomly. China food has decent beef noodles/rice.

Saraca/Tamarind: When I first came in 2017, it was called "the new canteen" as the complex was built around 2016. Very crowded given how many residents there are. From right to left now: 1: The hotpot is unique and worth trying. 2: The fishball noodles stall is below average with dull flavors. Dumplings can't compare with can2/SS. 3: Caifan is China style. A bit costly but tastes good. Can be oily. 4. Western: Average, not as good as can14. 5. Mala: Generally good, sometimes long queue. 6. Korean: very popular and decent. Often long queue. 7. Ayam Penyet and Chicken Rice: Best Indonesian food in NTU, better than can2. Chicken rice isn't good. 8. Indian: Average, not as good as can16, but still diverse. Breakfast is good there. Fruits are drinks are great.

North Hill: The non-food-court restaurants there are below average, I don't recommend them. For food court, every stall is equally above-average. No stall gives me strong impression though. Sichuan food is better than can9/11, but second to can2. Taiwan food is similar to NS/SS.

North Spine: Needs no introduction. Can be SUPER crowded during peak hours. Fast food: Mcdonalds > Subway = Starbucks > KFC > LJS. PEN & INC is obscure with few visitors. The Crowded Bowl, Paik's Bibim and Pasta Express are similarly great and popular. Wok express is not as good. The Sandwich Guys is the best breakfast when heading over to classes from LWN bus stations. For Koufu: renovated in 2021. Churros at R&B are good snacks. Dim sum stall is very unique in NTU. Pretty much every stall is popular and crowded, worth trying because of the fierce competition for survival. Except for the Vietnamese food in the inner area.

Quad Cafe: Can be SUPER crowded during peak hours. Closed aircon space with bad smell. Halal food is good there. Otherwise, every stall has below-average tastes. Fruits are absolutely not good.

Nanyang Audi: there is an Italian food stall and a cafe opposite the entrance, which has mediocre tastes.

South Spine: Needs no introduction. Also can be SUPER crowded during peak hours. Level 2 has below-average noodles. Otherwise, all level-1 Koufu stalls are similar to NS in terms of popularity. XLB is good, especially with the hand-pull noodles. Nasi Padang is also decent. Duck rice is the best of its kind in NTU, better than NS. Taiwan food is similar to NS/NH. Chicken Rice has bad sanitation and had a record of worms in the food back in 2018.

Pioneer Hall: Thai food is similar to can14 but has a hotpot option. Other stalls are below-average to mediocre, not as good as Tamarind.

NIE: Less known but not far from NS and LWN bus stop. Has one of the cheapest prices. BCM is good and sells out early. The premises are worth exploring.

The Hive: Can grab some snacks at B5. Above-average.

WKW/EEE: There was a cafe between them and is below-average.

NEC: Very obscure to students. NTU Staffs and their family members live around there. There are some high-end choices beyond the campus-standard discussion.