For casino operators and webmasters, variety of game selection is a key factor in deciding which platform to use. Both systems offer a large variety of options for popular games like blackjack and slots. Neither is known for their poker games, though both offer poker.
Most sources seem to agree that Microgaming has an edge on slots, while Playtech offers a better variety of Blackjack games.
Webmasters and casino operators should think long and hard about their players and what kind of games they want. There’s a big demographic difference between online blackjack and slots players and affiliates need to know what those differences are before committing to a platform.