Does Buddhist teaching contain more wisdom than Christianity?
When you say "Buddhism" "Christianity" "Wisdom", I have to ask, what do you mean?
Are you thinking of an all inclusive Buddhism? Are the Hinayana, Mahayana, Vajrayana schools all the same? Are the four Tibetan Buddhist lineages all the same? Is Zen Buddhism the same as the above? (no, it's not).
When you say "Christianity," do you mean the exoteric, Roman orthodoxy or proto-orthodoxy? Are you thinking of the Old Testament, the New Testament or both? By "Christian," are apocryphal and pseudepigraphal writings included? What about esoteric Christianity and mysticism like the writings of Eckhart Tolle, Reinhold Niebuhr, Thomas Kempis and Valentin Tomberg? What about early Christian writings that are collectively found in the works of heresiologists like Irenaeus, Athanasius, Tertullian, Hippolytus and Epiphanius? What about the early Christians they railed against; the Gnostics, their books and the discovery of the Nag Hammadi scriptures in 1945?
When you say "wisdom," do you mean experiential or learned? Is one obtainable without the other? Does one lead to the other? Can one lead to the other? What is the goal of Christianity? What is the goal of Buddhism? Are they "salvation" and "enlightenment" respectively or is there more to the story?
So I have to answer your question yes and no.