In the Roman Catholic church, even the Pope is still a 'priest'. They likewise elevate and consecrate through the various offices. But Ordain only once. What's interesting is that we actually look more like Catholics in that regard, than our mother Anglicans. The key difference there is how Bishops are addressed. In other communions, phrases like "Your Grade", "Your Eminence", "Your Excellency' are common. Stemming from medieval times when Bishops WERE essentially Royalty. In the Anglican communion, there was a time when Bishops were appointed by the Kings. And even in the Roman Catholic Church, there was a lot of ingrained political pressure. In a time where your King or Queen determined your religious affiliation, a promise from the Pope to elevate your relative, who wasn't even a priest, to Archbishop if you'd convert your little country to Catholicism, wasn't really uncommon. And likewise for early Protestants (Congregational Protestantism is a much newer thing. Early Protestants, for the most part, had a similar ecclesiology to the RCC that they left.)
In the UMC, Bishops are usually still addressed with the Ecclesiastical title "The Reverend", and commonly by their title, "Bishop". In much the same way that Pastors of local churches might be referred to as "The Reverend", or "Pastor". Although the former is becoming less and less common (I myself really only use/see "Rev." in official correspondence, on paper, etc. It is on my business card, but I neither refer to myself as such, few of my parishioners do, and I don't have any expectation that anyone call me that. I have to admit, nothing against Clergy who use that title of course; but it's always made me a little uncomfortable. Though being raised in a part of the country that put a lot of emphasis on titles, I never refer to a Pastor, Physician, etc. as "Mister" or "Misses". If they have a professional title, Dr., Rev., etc., I use it. When referring 'formally', such as from the pulpit, I always use titles. i.e., "The Reverend John Doe once said", informally, I might say "Yeah my good friend John likes to say".) Not only would you never hear of a UMC Bishop referred to as "Your Excellency", it would probably be considered inappropriate.
LIKE Anglican and Roman bishops, however, the understood color is purple or (less commonly) red/blue. Though not all of our Clergy (especially in the south) where Clericals (The clergy shirt with a collar), and few of our Bishops do, it would be inappropriate for a non-Bishop to wear blue, red, or purple Clericals. And likewise, Bishops who DO wear Clericals, rarely wear any color other than purple, red, or blue (most commonly, purple.) Most often though, UM Bishops are identified by a red lapel pin:
And not by special clothing. Skull caps, rings, etc., are not used in our communion to designate Bishops (though I do know some Bishops who wear seminary rings.) The Crossier (shepherds staff) is used by our Bishops; but only in very formal instances. My Bishop only uses his Crossier once a year, at Annual Conference. It remains near where he sits and isn't moved, with the exception of Ordination, which is the only time we actually see him holding it, and he walks in with it, and places it on a stand during the Ordination ceremony. This is similar to the practice used by Roman and Anglican Bishops, except that they have more situations that they would consider formal enough.
While we don't REQUIRE Bishops do confirmation, some do. Our Bishop has a once a year confirmation retreat. Some churches/Pastors choose to attend, and have the Bishop actually confirm the children. As opposed to having it done during worship by the Pastor. Both are acceptable in our polity.
Finally, I'm not sure how Bishops are selected in the Anglican communion, but in the Roman Catholic church they are elevated by superiors. Especially the pope. In the UMC, it's the other way around. Bishops are elected by peers. At an event called "Jurisdictional Conference", United Methodist Clergy, who were elected by THEIR peers at annual conference, are sent. And their responsibility is to elect new Bishops, and appoint current Bishops. So it is Pastors who elevate and send Bishops, not any sort of upper-class Bishop (like an Archbishop, or the Roman Catholic Pope.)
Unlike both the Anglican and Roman Catholic communions, we don't have any sort of chief Bishop. There is no one Bishop we can point to and say "That's the head honcho". Whereas in the RCC, the Pope is the chief Bishop, and in the Anglican Communion, that post is the Archbishop of Canterbury. Also called the Holy See; which is the exact same title used by the Roman Catholic Pope. In fact, it doesn't go any higher than 'Bishop'. We have no Archbishops, Cardinals, etc. However, we do have one additional level of leadership, called Superintendents. (A Bishops official job title is General Superintendent, who is the General Superintendent of an entire conference. They have a cabinet of District Superintendents that the Bishop themselves appoint) These District Superintendents are not Bishops, they are 'installed', not consecrated or elevated. But they do have certain supervisory authority over Pastors in their District. Sort of like a School Superintendent and the Principals. Each Principal is responsible for the day to day operation and budgeting of their local school, and the Superintendent with the broader work and mission of the entire district. Likewise, DS's are responsible for the local churches in their charge, and the Bishop for the broader ministry of the entire conference. (Though Bishops do appoint, they do so under advisement from the DS's. The DS does not have authority to appoint, unless it's delegated by the Bishop. But they do counsel the Bishop on appointments and often, their counsel carries a lot of weight. In fact, we local Pastors discuss appointments without our district superintendent first, THEN they take it to the Bishop for advisement. Such as, if I felt I should move, I would communicate that with the DS, not the Bishop. Then the DS would talk to the Bishop.)
Did we miss anything?