Their shared background:
Both are “normal” people that dress up as masked vigilantes to protect innocent people and beat up villains. Both are the terror that flaps in the night. Both have really cool suits as well. Also both go unnoticed in their everyday lives.
Darkwing Duck has his trusted non lethal gun and hooks and stuff along with his trusted duck shaped plane and bike that were made for him. Before he met Launchpad McQuack (that two-timing s.o.b.) he was a small time hero but after that he became a big hitter in his town. Even though he’s said to be a great martial artist it’s safe to say that he really isn’t, at least not in the conventional sense, no matter what one of his backstories say (the one spoofing Batman’s origin story, where he meets a genie in the desert and asks for a cold drink, a way home and his awesome suit). He also has a motorbike and a plane shaped like a duck, and if I recall correctly also a submarine.
Batman is a ruthless and cunning hero that is a great martial artist. Not only is he an unforgiving to this enemies, he also makes anything he can to defeat them. He’s got a lot of gadgets, many that are made just for the occasion, but the most common ones are his hookshot and his bat shurikens. He’s also got his batmobile, his batwing and batbike. He’s been known to have beaten beings such as Superman just using his mind. HIS MIND. It’s fascinating.
Darkwing Duck is very much susceptible to die from a bullet. At least if he was transferred to Batmans world, that is.
Batman would, even though he has tough armor and all, be very weak to a bullet if it’d hit the right spot.
If Darkwing Duck would have to fight in Gotham City, or anywhere else where toon logic wouldn’t make him invulnerable, then Batman with his ruthless ways and cunning mind would be able to beat him with his eyes closed. He’d use bat sonar. Ha ha ha, get it?
Batman emerges as the winner!
Now what do you think?
By the way, I’ve added updated pictures to Unlikely Versus No. 1 and 2.
Image compiled by MartianOddity from: http://www.fightersgeneration.com/np6/char2/batman-mkvsdc1.jpg and http://www.blogcdn.com/www.comicsalliance.com/media/2010/11/darkwingducktpbpreviewpagetop.jpg