Why is Gally's name localized as Alita? Battle Angel Alita is known as Gunnm in Japan, and Alita as Gally.

Why was the title and name of the series changed when it was localized? What other changes did they make from the original Japanese version?
Viz Media was responsible for localizing the Battle Angel Alita manga, and the reason apparently makes no sense, (from this page):


  Gally's name is changed to Alita. Why this was done is unknown, but the person who decided on the change tried to "validate" it, explaining that coincidentally Alita comes from Russian and has something to do with Mars (which is where Gally is from, incidentally). 


There's a dream sequence where in the original Japanese version, Gally's dream self is named "Alita". The Viz version has the two reversed. 


  Back in 1993, as Kishiro-sensei was quickly bringing things to a close with the Gunnm manga, he came across a plot point which he could use to take a jab at Viz. Early on, Kishiro learned that Viz decided to change, for reasons that truly make no sense, Gally's name to Alita. Towards the end of the series, Dr. Nova traps Gally in the Oruboros machine, in an attempt to crush her spirit. At one point, Nova is talking with Ido and suggests her name to be (in the japanese version) "Alita," the cat's name is "Gally." (Gally and the cats' names are important). Unfortunately, Viz decides to play along word for word, and Nova names her "Gally" and the cat is "Alita." So much for that potshot.


Additionally, Viz changed a bunch of names of a city, facility, and the computer (via Wikipedia, with emphasis):


  Besides renaming Gally to Alita, the North American version of the manga also changed the city of Salem to Tiphares, after Tiferet. Since Kishiro also used the name Jeru for the facility atop Salem, Jeru was renamed Ketheres in the translation, after Keter. To further develop the Biblical theme in the original series, Salem's main computer was named Melchizedek, "the king of Salem" and "priest to the Most High God".


Although "Alita" isn't a bible reference (western religion), a number of these names were changed, and Alita is a western name (moreso than "Gally"), so that it's more accessible to western audiences.



EDIT: I found the quote, from AN's "Ask John" column:


  In the October 1993 issue of Animerica, Fred Burke, co-translator for the Viz Comics Battle Angel Alita manga explains that, “For a Viz Comic to work, it’s got to appeal to more than just the hard-core manga and anime crowd;” therefore there were several alterations made in the translation of the manga. Yukito Kishiro’s title Gunnm, a compound of Gun Dream, was re-named Battle Angel Alita. Gally, the protagonist, had her name changed to Alita, a name, Burke explains, means “noble:” a name that he discovered while searching through a book of baby names. Burke also explains that, for no reason given, the floating city Zalem was re-named Tiphares: a name meaning “beauty,” taken from the Qabalah and the mystical Tree of Life. Furthermore, Yugo’s name was given a cosmetic change to Hugo for American readers.