Saraswati

Saraswati is the Hindu goddess of knowledge, music and the arts. Saraswati has been identified with the Vedic Saraswati River. She is considered as consort of Brahma, the Hindu god of creation. Thus, with the goddesses Lakshmi and Parvati or Durga, she forms the Tridevi ("three goddesses"), who are consorts of the male trinity of Brahma, Vishnu and Shiva, respectively. Saraswati's children are the Vedas, which are the oldest sacred texts of Hinduism.
(Source: http://en.wikipedia.org/wiki/Saraswati).

VISHNU LAXMI

Vishnu, is the supreme God in Vaishnavite tradition of Hinduism. Smarta followers of Adi Shankara, among others, venerate Vishnu as one of the five primary forms of God, and his supreme status is declared in the Hindu sacred texts like Yajurveda, the Rigveda and the Bhagavad Gita.

Vishnu is described as having the divine color of clouds (dark-blue), four-armed, holding a lotus, mace, conch and chakra (wheel). Vishnu is also described in the Bhagavad Gita as having a 'Universal Form' (Vishvarupa) which is beyond the ordinary limits of human sense perception. (Source: http://en.wikipedia.org/wiki/Vishnu)

Lakshmi or Mahalakshmi is the Hindu goddess of wealth and prosperity. Representations of Lakshmi (or Shri) are found also in Jain and Buddhist monuments, with the earliest archeological representation found in Buddhist monuments.

Lakshmi in Sanskrit is derived from its elemental form "lakS," meaning to perceive or observe. This is synonymous with "lakSya," meaning aim or objective. Lakshmi is thus goddess of the means to achieving objectives, including prosperity in the lives of mankind.

She is the consort of Vishnu and married Rama (in her incarnation as Sita) and Krishna (as Rukmini and Radha).
(Source: http://en.wikipedia.org/wiki/Lakshmi).