Sefira Nuschaos Differences

Question

What are the differences between the various Nuschaos in Sefiras Haomer (e.g. Ashkenaz says this, Sefard says that...)?

Answer 1

To tie up everything that's been said (and more):

• Nusach Ashkenaz generally say BaOmer at the end
• Nusach Sefard generally say LaOmer at the end
• Nusach of Sefardim (i.e. Edut Mizrach) say LaOmer before the weeks
• Nusach of Teiman say the count like the Nusach of Sefardim, except they say it in Aramaic [and say baomer(?)]
• I have seen (and not confirmed) that Nusach of Italian say the word LaOmer directly after Hayom

For example, on the 22nd day of the Omer:

• Ashkenaz: הַיּוֹם שְׁנַיִם וְעֶשְׂרִים יוֹם שֶׁהֵם שְׁלֹשָׁה שָׁבוּעוֹת וְיוֹם אֶחָד בָּעֹמֶר
• Sefard: הַיּוֹם שְׁנַיִם וְעֶשְׂרִים יוֹם שֶׁהֵם שְׁלֹשָׁה שָׁבוּעוֹת וְיוֹם אֶחָד לָעֹמֶר
• Sefardi: הַיּוֹם שְׁנַיִם וְעֶשְׂרִים יוֹם לָעֹמֶר שֶׁהֵם שְׁלֹשָׁה שָׁבוּעוֹת וְיוֹם אֶחָד
• Teiman: הַאידַּאנָא עַשׂרִין וּתרֵין יוֹמֵי בְּעֻמרָא, דְּאִנּוּן תְּלָתָא שָׁבוּעֵי וְחַד יוֹמָא
• Italian: הַיּוֹם לָעֹמֶר שְׁנַיִם וְעֶשְׂרִים יוֹם שֶׁהֵם שְׁלֹשָׁה שָׁבוּעוֹת וְיוֹם אֶחָד

Also note: the Leshem Yichud also varies based on Nusach.

Answer 2

Nusach Sefard says La'Omer - Nusach Ashkenaz says Ba'Omer

Nusach Sefard says everything in the Siddur - Nusach Ashkenaz only the Beracha, day, and HaRachaman

Answer 3

In addition to the other differences noted in the other answer, my understanding is that S'faradim say laomer before the weeks' count ("shehem..."), and Ashk'nazim after it. (No source, but check your nearby S'faradi sidur. (I don't have one nearby at the moment.))

Answer 4

For a very nice synopsis of the history behind these versions, see this piece from R' Binyomin Shlomo Hamburger.