User blog comment:Hawkinz340/Three Cards and Three Teams!/@comment-7740542-20131203215439/@comment-7890302-20131206225854

True, but remember this,

Marco was injured when he fought two other admirals and was sneak attacked by a vice admiral. He was also able to fight squarely against two of them as well. He is most likely around admiral level at the least and is just as strong as an admiral at most.

Jozu was giving Kuzan quite a tough time, until he got distracted and lost an arm to him. Even then, he was still able to fight. He was even able to force Crocodile back, one of the Warlords.

Vista was able to challenge Mihawk and give him some difficulty, and he is most likely the strongest warlord around, being an equal to shanks.

Had the three worked together at full power, even Garp would have a tough time, and Sengoku had to hold him back from killing the admiral.

Just my dumb opinion though.