Unconditional Election: "... God does not base his choice (election) of certain individuals on anything other than his own good will."
Catholicism: "What would a Catholic say about this? He certainly is free to disagree with the Calvinist interpretation, but he also is free to agree. All Thomists and even some Molinists (such as Robert Bellarmine and Francisco Suarez) taught unconditional election ... Although a Catholic may agree with unconditional election, he may not affirm "double-predestination," a doctrine Calvinists often infer from it. This teaching claims that in addition to electing some people to salvation God also sends others to damnation."
Article XVII: "Predestination to Life is the everlasting purpose of God, whereby (before the foundations of the world were laid) he hath constantly decreed by his counsel secret to us, to deliver from curse and damnation those whom he hath chosen in Christ out of mankind, and to bring them by Christ to everlasting salvation, as vessels made to honour."
Catholicism is not so far apart from Calvinism as Calvinists tend to think. I have actually become less hostile to Calvinism than I was when I was a Protestant.