Thanks to all of you for your Great comments and positive discussions.

One comment stands out "Short and sweet too"
"Treat them equally. give them the chance to travel, broaden their horizons, but at the same time make sure that the environment you send them to is to your liking."

I will ensure that they both will study abroad under safe environment of OUR liking to gain the Best of education what THEY are passionate about.

Once again many thanks buddies!