I usually go with 1/2 cup cooked rice, but that's assuming I'm eating it as a side with other things in a full meal. It's really up to you. How much rice do you want, and what fits in your calorie allowance? There isn't a universal "right" serving.
Always brown rice, keeps you fuller so much longer! If i'm having rice with a curry I go with 1/3 cup cooked, but if it's a bigger part of my meal then 1/3 or even 2/3, hope this helps!
I usually use 1/2-1 cup of brown or wild rice as a staple. If I'm including it in something like a soup or as a side, I'll stick to the lower end. I love rice! Super good for you (if you're not eating that white crap). :)
It depends on the viand that comes with it. When I have a slice of pork steak and some green salad, 1/2 cup is enough.
One serve of rice is 1/2 cup cooked. If you're having it with a lot of other stuff you can drop back to 1/4 cup and use the rice for texture more than anything else. The more other stuff you put with the rice the healthier the meal, because rice has a ton of carbs in it.