What I hated about MTG was even if I balanced my deck right I was stil liable to end up with either too many lands or not enough. Hearthstone is like League of Legends, and MTG is like DOTA. One's for the hardcores, the other's for the casual player.
You cannot compare the two.. MTG is leagues better and has a ton more depth. However I have been playing hearthstone for awhile and it is a ton of fun. I don't have a ton of good cards just a few, its just a fun game to burn some time and not think a whole lot while playing.