It is not a matter of your opinion. It is clearly stated by the Pope (and included in the original post in this thread):
ABOARD THE PAPAL PLANE — Pope Francis on Friday slammed both U.S. presidential candidates for what he called anti-life policies on abortion and migration, and he advised American Catholics to choose who they think is the “lesser evil” in the upcoming U.S. elections.
“Both are against life, be it the one who kicks out migrants, or be it the one who kills babies,″ Francis said.
That said---I have not adopted the "lesser evil" philosophy
"A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficulty” ---Sir Winston Churchill
"Political extremism involves two prime ingredients: an excessively simple diagnosis of the world's ills, and a conviction that there are identifiable villains back of it all." ---John W. Gardner
“You can’t go back and change the beginning, but you can start where you are and change the ending.” ---C. S. Lewis