*spoiler* Could Rama have taken down Mad Dog on his own?

Well, it's movie rules and both had plot armor. In his fight versus the sergeant, Mad Dog didn't look that great. He might not have gotten any serious injury but that's only because it's a movie - he actually got a severe beating there and the fight was surprisingly even. Of course, heroes and villains can take an unlimited number of hits from kicks and fists while random goons fall apart immediately (which is what would happen in reality). And this includes the final fight - all three kept on fighting until a weapon (sort of) was used.

Either Rama was fighting worse than before or the sergeant was a VERY proficient fighter. Even then it was kind of odd.

The way I saw it Mad Dog was the best pound for pound fighter of all the characters.

Mad Dog: Immense speed, great counter, decent blocks, and overall the best striker of the lot. But somewhat lacking in power (but then again he only fought big characters meaning they could take a punch)
Rama: Had a good mix of counter and blocks with good if not great speed but often lacked the knockout power. (Notice how he often tends to using the environment to help knockout his foe)

Since other mentioned him I think the Sarge Jaka versus Mad Dog was a great fight and that Jaka close defeat was to show just how good Mad Dog was! Think about it Jaka as people agreed on was the stronger man of the two, and he showed great skills. But Mad Dog still was the winner.

So to sum it up. I think Rama would be able to give Mad Dog a decent fight, but in the end Mad Dog would win it quite clear.

I think the answer is clearly no. Mad Dog BARELY lost the 2 on 1 match. Rama and his brother saved each other from getting finished several times only for Mad Dog to regain control. Mad Dog definitely would of killed Rama had the brother not stabbed the light shard into Mad Dog and even then it wasn't over. They both had to scratch and claw to barely survive the fight.

I highly doubt it, even with something embedded into his neck Mad Dog fought well.

If it's not on a plate, it can wait

I doubt Rama could have won on his own but what I found surprising was a great a fighter Andi turned out to be. After being described as the brains behind the operation and since we never see him actual fight until that point (he did dispatch two goons in the elevator but he caught one of them off guard and he had a knife) I somehow assumed he would be more on the weak side. And while he did not seem as good a fighter as Rama or the Sarge, he still managed to hold his own.

And talking about plot shielded, Mad Dog slammed Andi's head against the concrete floor many a time and he seemed to have taken little to no damage.

The actor/martial artist that played Mad Dog has actually developed a system that let's him take an insane amount of punishment without much damage. You guys should check out some of his Youtube videos.

Mad dog was laughable as a character. tiny dude kicking ass. I thought main character would destroy him but when they started fighting him 1x2 I was like wait .. what. All Rama fighting skills vanished against this little guy who almost lost to the cop he fought before..unbelievable.

Just finished watching the film and this is one of my only complaints, if you can call it that. The fact that it took double-teaming and the use of a weapon to bring the villain (Mad Dog) down. Kind of like the hero had to cheat to win. But we've seen it before in The Phantom Menace and Lethal Weapon 4[. Not to mention the hero actually losing the hand to hand fight on occasion (Die Hard 2). Guess you can just chalk it up as the villain being badass and the hero being more of a survivor.