Monkey D. Dragon is the leader of the Revolutionary Army. He is considered the biggest threat to the mighty World Government. Not many characters could really match the strength Dragon. So, today I have made a list of characters who could match the strength of Monkey D. Dragon.
Sakazuki became the Fleet Admiral after fighting against Aokiji for 10 days. He was the only person at Marineford who tried to stop Whitebeard in his steps. Furthermore after getting beaten by Whitebeard, he still chased away all the remaining Whitebeard Division Commanders. Sakazuki even scared away Blackbeard, even though Blackbeard had two of the most powerful devil fruits.