Re: Cueto or Greinke?
I like Cueto, but I don't think this is even close. Greinke's current FIP shows where his talent is. Kansas City has and has had a poor defense behind him and their long/middle relief has been really rough. That 64% LOB% is ridiculously and unsustainably low given his HR/rate.
In some ways, you could consider Cueto a Greinke light. Similar repertoire, but quite as good as stuff nor control/command.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.