10. Han Style
Solo. That's how Batman rolls and that's how he likes it. Remember Dick Grayson - who became Nightwing -when he couldn't work with Bruce anymore? How about Jason Todd who got killed by the Joker, and Barbara Gordon who became paralyzed while fighting as Batgirl? Yes, Tim Drake and Damian Wayne are doing fine, but three out of five partners didn't have such a great experience being in cohorts with the Bat... not a good probability. Imagine if someone was to take Batman and surround him with other superheroes with conflicting ideologies and methods of fighting crime. A house divided itself cannot stand. Let's put it in perspective: if crime fighting was a team sport, Batman would never pass the ball. He would sneak up on the ball, capture it, hang it upside down above a five story building and demand to know where the Joker is hiding. Now, the question of whether or not Batman could actually use some help depends on the universe he's in. In every live action Batman film, there was never a villain who was too much to handle; there were no giant monsters from space attacking Earth or some weird genetically enhanced mutant Batman had to take on, except Bane from Batman and Robin. He's only handled psychotic, intelligent villains and was never physically or mentally outmatched by anyone except Bane. If Batman was put in a universe where giant monsters and mutants were the norm, he'd be out of his element and this leads to our next point.