I loved 9 too. I loved that it was basically MK 1-3 with new graphics. I loved how the special moves looked and sounded the same as the old games.If true, that's fine with me. I respected the Injustice series, but it never did anything for me personally.
Man, I wish MK would return to the vibe and feel of 9. I adored that game so much. Growing up with MK, I'll always love it, sure. But I definitely think my love for the series peaked at 9, and then immediately plummeted with X and 11. I still gave them a shot, hell I grinded 11 just to get that Reptile Scorpion costume. I think 9 was actually the MK I played the most.
11, to me, felt like a step up from X, though I still didn't love either of them a whole lot. So, I'm just gonna hope that the next MK iteration is even better.
MK X and 11 look and sound weird to me. Still good games but yeah i prefer 9.