Comparing specifically with "xiang"

像 (xiàng) is used to compare a specific characteristic of two things or people.

像 as "Just Like"

Noun 1 + 像 + Noun 2 + 一样 + Adj. / Verb

她有时候像小孩一样天真。Tā yǒushíhou xiàng xiǎohái yīyàng tiānzhēn.She's as naive as a little kid sometimes.
这个老外的汉语像中国人一样地道。Zhège lǎowài de Hànyǔ xiàng Zhōngguó rén yīyàng dìdao.This foreigner can speak Chinese as fluently as native speakers do.
他很生气，像疯子一样大叫起来。Tā hěn shēngqì, xiàng fēngzi yīyàng dà jiào qǐlái.He was very angry and started to scream like a lunatic.
你怎么像我妈一样啰嗦！ Nǐ zěnme xiàng wǒ mā yīyàng luōsuo!Why do you sound as nagging as my mom!
我像你一样大的时候，还不知道手机是什么。Wǒ xiàng nǐ yīyàng dà de shíhou, hái bù zhīdào shǒujī shì shénme.When I was as old as you are, I didn't know what a cell phone was.

Noun 1 + 不像 + Noun 2 + (⋯⋯ ) 这么 / 那么 + Adj. / Verb

高铁 不像 飞机那么快。Gāotiě bù xiàng fēijī nàme kuài.High-speed trains are not as fast as airplanes.
上海的冬天 不像 北京那么干。Shànghǎi de dōngtiān bù xiàng Běijīng nàme gān.Winters in Shanghai are not as dry as in Beijing.
这个男老师 不像 那个女老师那么严格。Zhège nán lǎoshī bù xiàng nàge nǚ lǎoshī nàme yángé.This male teacher is not as strict as that female teacher.
我 不像 我父母那么喜欢省钱。Wǒ bù xiàng wǒ fùmǔ nàme xǐhuan shěng qián.I don't like saving money as much as my parents.
中西部 不像 东部发展得那么快。Zhōng-xībù bù xiàng dōngbù fāzhǎn de nàme kuài.The middle and western regions hasn't developed as rapidly as the eastern region.