I think the thread started with a fair point (someone enjoying MK more than Injustice and just feeling more excited about practicing it), but turned into discussing which game is better, each game's mechanics, and/or flat out shitting on each game.
I think Injustice is incredibly fun. I have my issues with it, namely interactables being too strong, iffy AA for some characters, and the game on the whole being a touch more forgiving than Mortal Kombat. However, it's still a very good game, and more importantly, a DIFFERENT game, which was the point all along.
However, I prefer the MK mechanics. That doesn't make me an MK lover who plays no other fighting game. And that doesn't mean I enjoy Injustice less because it's not Mortal Kombat. It's just that I enjoy Mortal Kombat more because I like the way it plays more. Simple as that. I like the anti air system in Mortal Kombat better. I like the importance of being extremely on point down to the last frame better. And most importantly, I like what I feel was the most fundamental aspect of how the game functioned: counter-poking. To me, as the game evolved, it became all about counter-poking, and I really enjoyed that aspect.
In the past 9 months or so, there has been a near universal leveling up in the community, and it really started to show more and more this year. It first became evident (at least to me) when Dizzy won Season's Beatings with some otherworldly counter-poking and the ability to be extremely on point with every single punish. Then REO showed ridiculous spacing with Kabal at MLG Dallas. This year, all you have to do is watch Tyrant's run at SCR (or NCR, can't recall which one), or watch DJT's fight with Wound Cowboy in the same tournament to see how much the community's improved in terms of spacing and footsies. Then Wafflez shows up at Final Round with some insane footsies (yes, even as a Smoke player!) anti airs, etc... And just when the game was reaching another level, Injustice got released and players understandably played MK far less. It was obvious watching UFGT just how rusty many of them were (Wafflez in particular was a standout example). While I can't blame any of them, I do hope they practice hardcore for EVO and show the kind of high level gameplay we were seeing from them before Injustice got released.
And before anyone points it out, yes, I'm aware of the number of glitches and bugs in MK. I was just talking about the game's mechanics.
Again, I think Injustice is a great game. It has so many layers, it's a ton of fun, and there is still lots of stuff to be discovered. No reason why we can't just enjoy both games (albeit one more than the other, depending on your preferences).