If you ask me about popularity of this or that TV show, movie, video game or something else, I will advise you to visit you tube website. The reason is I am sure that you tube is the only true measure of popularity of a video. So looking for information about the most popular videos in gaming, guess what website I consulted. Well, here you have top popular videos in gaming according to you tube:
•    Leeroy Jenkins. It is the name of World of Warcraft character. The character’s popularity resulted in his inclusion in the World of Warcraft Trading Card Game. Reflecting the video in which he appears, Leeroy is a detriment to the rest of the player’s team, exhausting them for the current and following turns. For gameplay reasons, his effects are not entirely negative: although no one else can attack, Leeroy can attack instantly should the player repeat Leeroy’s famous shout, and his attack is unusually high compared to the cost of playing him.

•    Multiplayer Teaser for Call of Duty: Black Ops. Black Ops is a first-person shooter video gamedeveloped by Treyarch, published by Activision and released worldwide on November 9, 2010 for Microsoft Windows, Xbox 360, PlayStation 3, Wii, and Nintendo DS.

•    The new trailer for Assassin’s Creed. Ubisoft released a teaser trailer for the upcoming animated short Assassin’s Creed Ascendance, which is kind of a teaser for Assassin’s Creed Brotherhood. Ascendance tells the story of Ezio’s attempt to dethrone the Borgia family from the papal throne. It became available on PSN and Xbox Live on November 16.

•    Girls from gaming! That is an unusual sort of gaming video, though people in the street were asked about the hottest girls in gaming. In the result we have the video that took the forth place in our list.

•    Call of Duty: Modern Warfare 2. They launched a new trailer with multiple sound, video and gaming effects. So if you are in Call of Duty, the new trailer is what you must watch right now.

Video gaming is a huge and prosperous industry where more than 2 billion video game titles have been sold. Below is a list of top 10 best-selling video games ever according to international sales data:
1.    Pokemon Blue, Red and Green take the first place. First released in Japan in 1996 the game expanded to the rest of the world to the year 1999. The series has sold over 20 million copies.

2.    Super Mario Bros. 3 and its 18 million copies sold. This game is the last in the series of video games for the Nintendo Entertainment System. It was first released in 2000.

3.    The third place goes to Nintendogs that has distributed 14 million unites. The game is a pet simulation developed by Nintendo for the Nintendo DS handheld video game console in 2005.

4.    Pokemon Gold and Silver. I bet that you did not know that the game is so popular all over the world. There were sold over 14 million copies of Gold and Silver versions, and that is only several version of the whole series.
5.    Grand Theft Auto: Vice City and 13 million copies worldwide. GTA is a sandbox-style action-adventure computer and video game designed by Rockstar North and published by Rockstar Games.

6.    The sixth position goes to The Sims2 that has 13 million copies distributed. The Sims2 is a strategic life simulation computer game released in 2004.

7.    Gran Turismo 3: A-Specis a racing game, the first in the Gran Turismo series for the PlayStation 2. 11 million unites have been sold now.

8.    Final Fantasy VII has 9.8 million copies sold. Final Fantasy VII is a console role-playing game released in 2000.

9.    StarCraft and 9.5 million units. It is a real-time strategy game released in 1998 for Windows.
10.    And the last in our chart is World of Warcraft with 9 million copies sold. It is a pay-to-play massively multiplayer online role-playing game created in 1994.