DotA 2 is the best game for me.I will give some information of this game.

There is 112 heroes in DotA 2.

They were divided to 3 type.

Strength/Agility/Intelligence

Strenght heroes are tough heroes and can with stand more damage than other type of heroes.
Because of their high Str,this heroes have the greatest natural health and can regenarate quickly,
keeping them in fight and dealing damage. Strength heroes can fit a variety of roles. 
And are almost was Melee Heroes

Agility heroes are finessed and dexterous. Master of weapons and fighting techniques.
These heroes have high attack speed and Armor,and focus on using their regular attacks and any items, but can fall back on their abilities to pinch. Agility heroes will often be played as 
carry and gank roles,because of how well they scale.

Intelligence heroes are master of spells and abilities. They tend to have larger mana pool than the other. Because of this, they often rely on their abilities to help allies and harm enemies,
rather than physical attacks. Most intelligence heroes are fragile. Intel heroes are often played as support,gank and pusher role.