Bismillahirrahmanirraheem
Assalamu alaikum brothers & sisters,
Allah is unique. So naming a person using Allah's name is SHIRK. It breaks the catagory of Tawheed.
For more information about Tawheed, please watch Dr. Zakir Naik on: http://www.youtube.com/watch?v=fYFSucB_mfc
And, The name "Ali" is not as same as the name/attribute of Allah mentioned in Quran.
The name/attributes of Allah "See below" And "Ali" which is the name of Son & Cousin of Prophet Muhammad (pbuh) have different Spelling, different Pronunciation as well as different Meaning.
Reference: http://corpus.quran.com/qurandictionary.jsp?q=Elw#(2:255:49)
(2:255:49) l-ʿaliyu ---- (is) the Most High
(4:34:39) ʿaliyyan ----- Most High
(22:62:16) l-ʿaliyu----- (is) the Most High
(31:30:15) l-ʿaliyu----- (is) the Most High
(34:23:21) l-ʿaliyu----- (is) the Most High
(42:4:9) l-ʿaliyu------- (is) the Most High
(42:51:21) ʿaliyyun----- (is) Most High
(43:4:6) laʿaliyyun----- surely exalted
We are not allowed to give any Name/Attributes of Allah to the creation because Allah is UNIQUE. If we do, we have to add "Abd(slave)" before the name of Allah. Such as: Abd-Ar-Rahman; Abd-Allah; Abd-Aliyyun.
Allah said in Quran:
(17:110): Say, "Call upon Allah or call upon the Most Merciful. Whichever [name] you call - to Him belong the most beautiful names."
(20:8): To Him belong the most beautiful names.
(59:24): To him belong the most beautiful names.
So, the attributes / names of Allah is only for Allah. Not for any creation of Allah.
Allah said in Quran:
(16:74): Do not assert similitudes to Allah
(112:4): There is none comparable to him
(42:11): There is nothing like him
Please feel free to say anything Or, correct me if I am wrong.
Regards
Islam