I have just been playing Rocket League this evening with 3 mates, and it is really good fun. I enjoy it immensely. Maybe as much as Mount your friends, which is better than many things on this list. But I guess it depends on if you are into MP Party Games. Soma is about the only other on this list that tickled my fancy. I like Just Cause in idea, but you go around, on your own, in a big world, and it gets boring fast.
But then I do prefer playing MP Co-op.
GTA V However should not be on this list. Laggy. Connection issues. Poorly thought out. Hackers galore. Too much of an attempt to nickel and dime, in a very bulky, is that $50, for shark cards, thank you, way.
It looks lovely, a great beautiful sandbox, with no reason to be there, shoot someone they shoot you back, shoot them again, they attach a yacht or now a building to your face. Hunt them down ? They are invisible, with god mode, whats the point.
Change server ? Fine, but that building on your face will probably stay attached to you until you reboot the game so good luck with that. Hacks fixed ? People banned ? Check the forums, none of them care, the game is awful, they just refuse to grind in it anymore to get the cash to buy the new bits, nor do they want to pay for shark cards. But is it a question of Rockstar and their poorly thought out game and content, as lovely as it is, or is it a question of how needy the youth of today are, where they must have everything instantly because they are just that spoilt in todays world ?
Definitely buy on sale, you prob won't get much out of it.