Who's better? Well let's see Batman has genius-level intelligence, is a master detective, is a master escapologist, has Peak human physical condition, and is a Martial arts master. On the down side Batman ALWAYS gloomy and depressed. In bright day light is Gotham's famous billionaire, playboy ,and philanthropist Bruce Wayne.
Nightwing was the very 1st and original robin (sidekick to Batman). After a while he was tired of being Robin, not to mentio n he was fired too. He then became Nightwing. He settled down in Bludhaven, became a cop by day, and the city's avenging angel by night. Some of his qualities are peak human level athlete/acrobat, exceptional martial artist master tactician and field commander, and master detective. Nightwing's secret identity is Richard Grayson. Growing up, he one of the main stars of the act the Flying Graysons. He is the only person on Earth(in the Dc world) who can do the quadruple somersault. His detective and martial arts skills are close if not equal to Batman's level, making him one of the greatest crime fighters alive. He speaks with fluency in English, French, Spanish, Russian, Japanese, Mandarin and Cantonese (though he appears not to know how to read the last three), and has some knowledge of Romany and the alien language of Tamaran.
Oracle was the former batgirl, after the joker shot her in the stomach, she lost the use of her body from waist down. She possesses a genius-level intellect; photographic memory; deep knowledge of computers and electronics; expert skills as a hacker; and graduate training in library sciences. Oracle has also trained under the tutelage of Richard Dragon, one of DC's premier martial artists, to engage in combat (using eskrima) from her wheelchair. She develops her upper-body strength and targeting skills with both firearms and batarangs. Many heroes come to her for information, including both Nightwing and Batman. Her secret identity is Barbra Gordon, daughter of police commissioner James Gordon. Gor don.
So who's the best? You tell me.
* Some info is copied from wikipedia*
