Rambutan are my all time favorite. My grandparents in Singapore used to have a rambutan tree in their backyard, and I used to love eating rambutan right off the tree.
Another favorite is mata kuching, which is similar to a longan (which I also like). I’m not sure what countries they are available in besides Malaysia, but I think they are also known as cat eye fruit. It’s a seasonal fruit, and there are always people selling them streetside when in season. I was lucky enough to get some on my trip in March, and ate about 3 lbs of them by myself.
I also like durian. I know a lot of people don’t, but I grew up with it and started enjoying it more as I got into my late teens. Prior to that I only liked it in cookie/pastry form.
side note to @naf - I’m surprised the hotel didn’t fine you or kick you out for the durian odor! Many places are very strict about bringing durian into their buildings, and even taxis and public transport don’t allow it (some taxi drivers will allow it in the trunk of their car). And mangosteen are not allowed because the pulp leaves a dark permanent purplish stain if you get it on fabric or plastic.
I like starfruit and dragonfruit too, but I don’t go looking for them like I do with the other fruits.