Some of Batman best feats against other characters in different companies or universes.
Villains:
KOes Batroc the Leaper (off panel) despite being ambushed beforehand plus being stunned before that by the choatic energy in the area (JLA Avengers #4)
Defeats Bullseye with 1 punch and even dodges him despite his super human like aim (Marvel vs DC #1)
Quickly defeats Scorpion by hitting him inbetween the eyes with a batarang followed up with a precise punch (All Access #3)
Heroes:
- Takes on all 4 of the Ninja Turtles singlehandedly and easily dominates their battle
- Battles Master Splinter to a brief unconclusive draw (who admires Batman for his rare martial arts skills) until Splinter disappears
- Leonardo mentions he's never fought anyone quite like Batman before not even The Shredder. We also learn from Leo that Batman was holding back while fighting the Ninja Turtles (avoiding lethal blows) being moreso interested in analyzing and observing them just as a detective would
Batman Teenage Mutant Ninja Turtles #6:
- Takes down a Venom enhanced Bane who's strength has been boosted even further with mutagen by hitting him in the face with electro batarangs
- Using a reinforced intimidator battle suit created by Donatello to take on the Shredder he gains the upper hand over him in melee combat until Shredder throws acid on him burning through and damaging most of the suit. Afterwards, we're treated to a prolonged melee combat battle between the two that ends in Batman's favor. We also get to see a cool Ra's Al Ghul vs The Teenage Mutant Ninja Turtles fight scene in between this battle with Ra's dominating the Turtles in melee combat until they wisely attack on him all at once defeating the Demon's Head
Vs Snake Eyes - Fortnight Point Zero #3:
- Fights the GI Joe elite commando and ninja master famously known as Snake Eyes numerous times with each battle ending in a draw due to the two being so evenly matched on top of having their minds erased after each battle. We even see both fighters save one another just so they could continue to have a fair fight
- It finally gets to the point where the two realize they are being manipulated by some hidden mastermind(s) that has pitted them against each other then decide to stop fighting and communicate through hand signals with their encounter ending with a great deal of mutual admiration and respect for one another
Vs Punisher (Punisher & Batman - Deadly Knights):
Round 2 - After letting Punisher punch him once, Bats easily disposes of him (it must be noted, though, that Frank had both shoulders injured and that this may have affected his performance)
While leading the League in scouting the Marvel Universe, Bats spots Punisher gunning down some drug dealers and intervenes. According to Plastic Man, he spends 20 minutes beating up Castle (Avengers/JLA #1)
Vs Daredevil
3 - Has a brief midair fight with Daredevil who ambushes Batman to get his attention but the encounter ends inconclusive (Batman Daredevil - Kings of New York)
Vs Captain America:
1 - Fights Steve Rogers (Captain America) to a draw in hand to hand combat as Bruce Wayne (Batman/Captain America)
2 - Battles Captain America to a stalemate in hand to hand combat although Batman admits its possible for Cap to win but only after a very long drawn out fight which they had no time for given the universal crisis they were facing (JLA/Avengers #2)
3 - Defeats Captain America only after fighting him for hours in the sewer as we see Batman dodge Cap's shield then KO Cap with a well placed batarang to the head. Afterwards, Bruce saves Cap from drowning as they then decide to team up (Marvel vs DC #3) NOTE: The victor of this battle was decided by FAN VOTES back then
Batman vs the Incredible Hulk
1 - Vs Hulk
Round 1 - Takes out the Green Goliath using a combo of skills, tactics and gas
Round 2 - Facing an angry Hulk determined to kill him, the Dark Knight manages to escapes his clutches practically unscathed despite the Green Goliath makes a building fall on them
2 - Using a clever tactic, Bats manages to beat a Joker who was made virtually omnipotent by the Shaper of Worlds
Hold his own quite well against the X-Men using only skill and clever battle tactics (All Access #3)
Batman/Planetary:
1 - Battles Planetary Jakita to a draw
2 - Transformed into his Adam West incarnation, he takes down Jakita
3 - Transformed into his Dark Knight Returns incarnation, he temporarily takes down Elijah Snow and Jakita with weaponry
Defeats Elijah Snow by showing off impressive reflex speed blocking bullets with his batarangs then neutralizing Snow with them allowing Diana (Wonder Woman) to kill him off. In addition, he created a suit made to withstand Elijah Snow's meta human temperature manipulation power (JLA/Planetary)
Spawn/Batman (Image):
1 - Defeats a powerful cyborg
2 - Does well against Spawn although he loses he manages to hurt him pretty badly with nerve gas
3 - Fights Spawn to a stalemate with aid of a cyborg battle glove that enhances his strength/power
4 - Spawn teleports Batman and himself onto a lanched nuke which Batman disarms in time
5 - Not a feat just Batman leaving his mark on Spawn