I am always torn before white and red sauce pastas
The Italians always have been known for diversity in their cuisine so you have lots of sauces to choose from.
That is true. That can also be seen in the wide array of pasta types. What is your preference on that?
I need to avoid gluten so I choose pastas made from rice flour.
Hmm, I've never had rice flour pasta. Is it healthier (calories/carbs/etc) than normal pasta? 
No, I believe they are similar in that regard. I just have to avoid the gluten found in grains like wheat.