I LOVE Richard Rohr.

I definitely have an ecumenical world view of religion and have learned from so many spiritual leaders:

Richard Rohr, Thomas Merton and Dorothy Day are the Catholics who inspire me most--but there are many more.
Thich Nhat Hahn (Zen Buddhist), has greatly inspired me. I've read most of his books and I try to practice his principles of living in the moment daily
Ram Dass is also pretty ecumenical, but his grounding is Hindu (also some Buddhist, and his heritage is Jewish)

But they all basically say the same thing...