Keep in mind that I qualified all of this with a subjective "my feeling is... my vibe is..." and acknowledged my noobness to the team. That being said, I dont know where Santander would go, but my "feel" is that he has the ability to be a superstar, not just on the field, but socially - like movie-star / media / tabloid sort of thing. I think he finds a fanbase (sometime, somewhere) that makes him a hometown hero/celebrity.
No false dichotomy meant re: M & K. I'm simply explaining the fantasy league that's in my mind. OP --> "IF I HAD to choose". Let's say it was a money thing... or a get rid of one or two to bring in some other dynamic. Other than that, I'm gleaning from the forums and taking a shot at participating.