I have attended all three of these in my lifetime, and I like them all, but I'm a member of a church now, which may constitute a fourth, although with perhaps some features of each, but I'm afraid my powers of description may be inadequate, so if anyone has any questions, please don't hesitate to ask.
I belong to a UM church which a congregation which is approximately eighty percent black. We have two choirs, a professional one which pays for a lot of the church's maintenance, and a pathetically amateur one (and by that I mean incredibly bad; we had so few tenors that I sang tenor, like in the Johnny Cash song, so trust me on this one), because everyone with a really good voice is pulled for the professional one.
We have a printed order of service and everything, but the cool choir enters after the congregation is seated, and their small orchestra (pretty much a Gospel and Jazz band which can really wail) is already tuned up and strikes up the same the opening hymn each week, which is Black Gospel, and to which rhey choir mwmbers also clap, walking in a procession up each side aisle (there is no center one) to the front in a stylized, coordinated fashion to fit with the music, a little like a school graduations.
(The *ahem* below average choir is already seated, and when they perform their one number later (piano only), the cool choir can be counted on to enthusiastically applaud their effort with total sincerity).
Then the fun starts. LOL
The sermon style depends on what sort of part time pastor we can afford; the closest UM seminary is too far away to provide us with a supply of UM pastors-in-training, but even when we have a pastor who is rather high church, individual members of the congregation will quietly, but audibly and emphatically encourage him or her in a manner which is sincere, and not in the least distracting: "Amen, Brother!", "You're right, Sister!", "Preach it, Brother!", and sometimes repeating a short version of the pastor's statement : "Um um! No followin' the world!", and no one ever speaks up at the same time.
Some of the announcements will be in the nature of personal congratulations:
"Brother so-and-so has been accepted to Drury University (It's an excellent private school, and expensive). Let's congratulate him!" Then the embarrassed young man must stead to applause, while his parents sit there, beaming with pleasure and pride.
In the Narthex, our free copies of The Upper Room are cheek and jowl with the monthy newsletters from the local African ME and Christian ME churches.
In a city in which you can find UM churches within three blocks of each other, half with cornerstones showing that they used to be Southern ME churches, I'm couldn't be prouder to be a member of a Black ME church which never split away. My father's church is their "sister" church, and he's equally proud.
This is an old, and historically important church, and better yet, today's congregation is warm and welcoming to all. I can't tell you how very much I miss being able to attend; it was always the high point of my week.