The Big Four pageants are:

Miss Universe, Miss World, Miss Earth, and Miss International

In the world of beauty pageants, these four have become the top international pageants. Miss Universe and Miss World have gained greater success and popularity, having started back in the 1950's and being annually aired worldwide. Miss International came in the 1970's. Miss Earth, leaning more on the promotion of environmental issues, started in 2001.

In terms of the average number of delegates attending the events, Miss World commands the highest number of attendance (over a hundred candidates), followed by Miss Universe (averaging from 75-85), Miss Earth (around 80), and Miss International (below 50).

Statistics

In terms of winning the "Grand Slam" (a country winning all four pageants, but not necessarily in the same year), only Brazil and Venezuela have done it so far, with their victories in the Miss Earth pageant.

Venezuela holds the most titles, winning 14 times, closely followed by USA, though the latter is yet to win in the Miss Earth to claim a Grand Slam.

{| class="wikitable"
|- bgcolor=efefef
|Country
|Miss Universe
|Miss World
|Miss Earth
|Miss International
|Total
|-
| Venezuela
| 4
| 5
| 1
| 4
| 14
|-
| USA
| 7
| 2
|
| 3
| 12
|-
| India
| 2
| 5
|
|
| 7
|-
| Australia
| 2
| 2
|
| 3
| 7
|-
| UK¹
|
| 4²
|
| 3
| 7
|-
| Puerto Rico
| 4
| 1
|
| 1
| 6
|-
| Sweden
| 3
| 3
|
|
| 6
|-
| Philippines
| 2
|
|
| 4
| 6
|-
| Brazil
| 2
| 1
| 1
| 1
| 5
|-
| Finland
| 2
| 1
|
| 1
| 4
|-
| Argentina
| 1
| 2
|
| 1
| 4
|-
| Holland
| 1
| 2
|
| 1
| 4
|}

¹ Uses the name Britain in some of the pageants, while may compete as separate nations (i.e. England, Scotland, Wales and Northern Ireland) at times.<br>
² Does not include Miss World crown won in 1974, when Helen Morgan resigned.