The basic three of Indonesian cooking are definitely a favorite of mine : garlic, ginger and chillies go well together with almost any meat and rice dish. Many more but I can't possibly name them all.
I also love the combination of garlic, lemon, black pepper, rosemary and thyme for white meats.
My personal favorite mix for potatoes however is garlic, smoked paprika, fresh rosemary, some lemon zest, grated black pepper and sea salt.
I love basil and oregano in any tomato sauce too.
For spicy tuna sushi and as a rice topping I also love Shichimi togarashi : it is a Japanese spice blend consisting of chilli flakes, yuzu zest, seaweed and roasted sesame seeds.
For sweet dishes I love a combo of cinnamon, ginger, nutmeg on things like apple pie and pear tart.