Whitebeard Pirates

Whitebead Pirates seem to be the one of the strongest (if not THE strongest) pirate crews ever as their captain (Whitebeard) was the only one to ever tied with Gol D. Roger in a fight. Whitebeards crew has been divided into divisions as shown below:

Crew Information
Captains

Whitebeard

Division Commanders
There are 16 division commanders of Whitebeards commander a grand total of 1,600 men.

Marco seems to be the strongest in the whitebeard pirates besides whitebeard himself as he knows what would happen to the young members of the crew if they get to close to Red Haired Shanks when he and whitebeard werediscussing some matters. Also Shanks wanted Marco to join his crew further showing his strength. Luffy's brother is the 2nd division captain in the whitebeard pirate crew. nothing much is known about him. Was killed by Blackbeard, as he had the Devil Fruit he wanted.
 * 1st division captain:Marco.
 * 2nd division captain: Portgas D. Ace.
 * 3rd division captain:Joss
 * 4th divison captain:Sachi
 * 5th divison captain:Unknown
 * 6th divison captain:Unknown
 * 7th divison captain:Unknown
 * 8th divison captain:Unknown
 * 9th divison captain:Unknown
 * 10th divison captain:Unknown
 * 11th divison captain:Unknown
 * 12th divison captain:Unknown
 * 13th divison captain:Unknown
 * 14th divison captain:Unknown
 * 15th divison captain:Unknown
 * 16th divison captain:Unknown

Former Crewmembers

 * Marshall D. Teach

Strength
As stated above all of whitebeards crew are strong and are the most likely to obtain the legendary treasure one piece.