Dota 2 is the least beginner-friendly game I have ever played (my experiences as a new player) I played my first match of Dota 2 about 2 months ago, and since then I have played a total of 67 games. Dota is the least beginner-friendly game I have ever played.
Dazzle was the best hero with 10+ matches: He had 18 maps and a 72% winrate. He was also the most banned (101 games), followed by Treant Protector and Primal Beast (89 games each).