Alright for now Im gonna leave the DD topic alone, but here is what Croc did during MF.
He tanked a brilliant punk from Diamond Jozu:
You must be registered for see links
This same attack even made Aokiji bleed:
You must be registered for see links
He garnered attention from Sengoku, showing how significant he was.
You must be registered for see links
Doflamingo and him had a minor scuffle nothing serious but DD did use haki since he was able to attack Croc.
You must be registered for see links
He forced Mihawk to stop chasing Luffy
You must be registered for see links
We can't make any assumptions why he chose to stop but all we know is that he stopped chasing Luffy who he didn't stop chasing when any one else appeared infront of him, this is another sign of respect.
And it has to do with strength cause this is how Jimbe treated a fellow shichibukai Moriah
You must be registered for see links
Croc managed to stop Akainu for a brief moment allowing Jinbei and Luffy to escape.
You must be registered for see links
You must be registered for see links
we all know how persistent Akainu is he would never choose to let Jinbei and Luffy out of his sight if he wasn't forced to do so, and he never goes easy on anyone.
Its not like Crocodile was training in Impel Down or something, this is the same guy who Alabasta Luffy beat, but these feats from Marineford have us questioning whether MF Luffy is even on his level let alone alabasta Luffy. There is no way Alabasta Luffy is capable of such feats, and MF Luffy had a worse showing than Croc too. He was respected by too many high tiers/top tiers and he has feats to back it up. Plot did Croc in during Alabasta, Luffy was not even in the general level of Croc. Even post skip Supernovas would have trouble pulling out a similar performance during MF. 1.Tanking Jozu's attack 2.Stopping Mihawk briefly 3.Clashing with DD (regardless of the seriousness of the situation its a bit of portrayal) 4.Stopping Akainu briefly.