Switch version is good enough if portability is a priority, but isn't exactly stellar. Plus i remember the backlash some sub native resolution vita games back in the day and now it doesn't seem to be an issue anymore
Interested in how it performed since shares engine with samsho, so not looking good for me to double do with the sni game.
Backlash on sub-HD Vita games was similar to the backlash on Switch game for the sane reason: people that either don't have it but look at screenshots and videos to laugh, people with absurd expectations and people that just troll.
Said sub-HD Vita games usually looked and played fine (when done well).
Mortal Kombat 9 and Injustice on Vita were and are still great games and amazing ports.
People forget that before PSP, it was very rare to see "console like fighting games" on handhelds. Usually the rosters was reduced, number of stages, frames of animation and what was released was basically a demo of the actual game. (Crawfish did wonders with Street Fighter Alpha 3 on GBA)
So having a fully featured Mortal Kombat game on handheld that you can also play at home and still looks fine is far from those days. I'm currently alternating between Switch and Xbox even. :p
As a note, Samurai Showdown uses Unreal Engine 4.
Mortal Kombat uses the same engine as MKvsDCU, MK9, Injustice and Injustice 2: a haeavily modified version of Unreal Engine 3.