Recs.
Updated
League of Legends is a team-based MOBA that includes some real-time strategy elements.
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Pros
Pro The world's biggest e-sports title
League of Legends is the worlds top e-sport title. It raises e-sports to a completely new level, making it real sport, no compromise.
It's funny that people still think of "biggest e-sports" as of "highest prize pool", playing other games, they are accustomed that there is nothing except Worlds championship and another couple of big events. On the contrary. League of Legends is a constant big event. Although it's not the first in highest prize pool on Worlds, its e-sports competition is not limited by rare championships here and there. That's why it is the biggest.
Since 2010, there have been several professional leagues, with four major: LEC (Europe), LCS (N. America), LCK (S. Korea), LPL (China) and more than 10 "not major" in Russia, Turkey, Latin America North, Latin America South, Brazil, Vietnam, South-East Asia, Australia and Oceania, Japan, Taiwan and more.
It has big "physical" infrastructure, studios and "stadiums" (usually one per region, but they have more than one in S. Korea and China) are built to take regular championship events. Each region has large "TV"-teams, a large number of analysts and casters. Major regions have more than one caster teams, one of which is English-speaking. Overall, several days a week they produce about 6 hours of an expensive TV show.
They have two seasons a year (splits). In each, 10 teams are competing. Each team plays 2-3 games each week, so the total number of games is around 10-15 a week.
Teams have large infrastructure. Each has several coaches (strategic, analyst, etc.), sports psychologists, cooks, etc.
In major and some other regions, each organization has 10 or more players, who also play in challenger league (as the second team) and/or are raised to play in the main team somewhen and/or for substitutions in the main team.
So, LoL is a real sport and the biggest of e-sports ever.