What are specific differences among Methodist denominations?

[Maid Marie]

Not much in doctrine or practice, and on the doctrine side the Free Methodists could be included as well. My dad was ordained in the Wesleyan church, and was raised Free Methodist. He preferred the more independent structure of the Wesleyans rather than the bishops and hierarchy in the FM.

That said, he occasionally spoke of an ongoing merger discussion between the FM and the Nazarenes started in the early 1900s that kept getting hung up on the issue of church government, independent vs hierarchy.

Yes, there are other Wesleyan denominations such as the Free Methodist, Church of God Anderson, Brethren in Christ and Salvation Army besides the UMC, CofN and Wesleyans. FM and UMC tend to be the more structured ones. The SA has a lot of structure but in a different way. They also don't celebrate the sacraments. Church of God {Anderson}, BIC, TWC and CotN are in the middle - some structure but not like the others. But primarily [other the Salvation Army's lack of sacramental practice and belief], we are the same in doctrine.