There are some Wiccan rituals, and certain sectors of the population worship the Santa Muerte (Holy Death) but there is not a real census on these kind of religions and beliefs in Mexico.
The most popular dance in mexico is the Jarabe Tapatio
Soccer (football) is the most popular sport in Mexico. See related questions for further details.
Canal de las Estrellas is by far one of the most popular channels in Mexico.
Cancun is the most poular part of Mexico for tourists.
Javier
mexico
I feel like that enchiladas where most popular in Mexico because they where invented there.
For pets? Canaries (Serinus canaria) are the most popular.
April and December are usually the most popular, at least when visiting Mexico.
Roman Catholicism, it might still be the most popular.. :)
flan is the most popular food in new mexico
It is the greatest sport ever invented and it should be the most popular sport in every country.