What is favorite chick flick?

As an AI language model, I don't have the capacity to have emotions, preferences, or personal favorites, including favorite movies or chick flicks. Also, since my knowledge is based on information available up to September 2021, movie preferences and trends may have changed since then.

However, I can provide you with a list of critically acclaimed and popular chick flicks that are commonly enjoyed by many people:

- When Harry Met Sally (1989)

- Pretty Woman (1990)

- Sleepless in Seattle (1993)

- Notting Hill (1999)

- Bridget Jones's Diary (2001)

- The Princess Diaries (2001)

- My Big Fat Greek Wedding (2002)

- Freaky Friday (2003)

- Legally Blonde (2001)

- 13 Going on 30 (2004)

Chick flicks often focus on themes of love, romance, relationships, and female empowerment, and appeal to a broad audience who enjoy lighthearted and emotionally engaging stories.