(The answer is of course: 4. A smartphone with a head-or-tails app.)
I do not know of any church that adopts new translations as they release; the vast majority of Christian churches adopt one translation and stick with it for years and years.
In the Evangelical Lutheran Church in Denmark this is partly true. The latest "authorized version" is adopted almost as soon as it is released, yet, the latest is from 1992 and replaced the 1931 version. Very few people stick the the old one, including the wording of The Lords Prayer (however, the new version merely updated a few archaic words).
As for the memorization, I believe you should make a distinction between memorizing and remembering due to frequent repetition. While memorization does occur in Christianity, I believe most of your list belongs to the latter. You may also may make a distinction between remembering and recognizing. For example, people who attend church will recognize the blessing, but few of them will be able to repeat it, and it's certainly not something that is expected of them.
If you want to put yourself on the map, publish your own map.