Over at the Seedbed site, there is a great article by Dr. Fred Sanders, a systematic theologian and author who teaches at Torrey Honors Institute at Biola University entitled John Wesley on Experiencing the Trinity. Sanders writes:
What John Wesley thought about the Trinity was wonderfully predictable. By that I mean that anyone familiar with the way Wesley’s mind worked can readily predict the character of his trinitarianism. Since his overall cast of thought was to be aligned with classic Christian doctrine, centered on the gospel, and intensely interested in spiritual experience and spiritual progress, his trinitarianism likewise exhibits these traits.
Check it out.