Microfiber v. Bamboo v. Hemp

I am getting ready to buy my first ever set of cloth diapers. I have chosen an all-in-2 system with snap-in inserts. I read that hemp is pretty awesome BUT it is more than twice the price of the microfiber inserts. Bamboo is in the middle. I am diapering twins, so everything is double the price and I am trying to keep costs down.

So, are hemp really THAT much better than microfiber? (I’m looking at a cost of about $10 for a 3 pack vs $23). Any happy microfiber users out there? What about bamboo or hemp?

Thanks for helping this slightly overwhelmed FTM :)