My brother is the most important person to me in the world along with my mum and dad.
I do have few friends I care about, but family is always before friends for me.

I would never do anything like that. I would try to save both. No matter what. In my mind doing such a thing would make me a hypocrite as far as my moral code goes.

^Same. I would find it hard to imagine it. My sister, and, as you may already know by now, my best friend are insanely precious to me.

Quite frankly, Id probably end up with all of us dead if only one could live cause Id stupidly try to save both and with most of hte scenarios that would be the case would probably end up with me failing and everyone dying XD But oh well. At least I tried.