what flashcard to get?

im thinking of getting a new 3ds and a flash card but im confused on what one to get?
the sky3ds seams to be good because they dont change the 3ds system? and it supports online play.
the gateway though supports hombrew, had its own menu and can install .cia files.

the main thing is i want to be able to play region free and online, whats your guys opinion on what card would be best?