@Panda:
Again, though, no indication at all that he went alone. He could easily have gone at the head of an 'army of beasts', or whatever it is the phrasing was. It seems to come across more as you having decided that Bobbin is stronger, for whatever reason, and are now looking for evidence to support your claim, instead of the other way around.
There's proof, just…not physical proof. Coincidental proof? lol
Basically:
He went to a country and destroyed it. With help? We don't know. But, volunteering to go to Fishman Island and destroy it too, right after returning from already destroying a country, a rather hard task I'd imagine, indicates he enjoys destruction and "puts in work".
He, UNLIKE Pekoms and Tamago, showed absolutely NO FEAR when speaking to Big Mom. Even after she cannibalized some of her own crew (for some reason), and found out Fishman Island couldn't make their candy payment. Heck... Pekoms and Tamago showed A LOT of fear over a Den Den Mushi, far far away from Whole Cake Island; Bobbin did not, even sitting right in front of her (he even relayed the information to her).
He, unlike Pekoms, we know nothing about; other than he appears to be a swordsman. A LOT about Pekoms was revealed in the course of 2 chapters (i.e. he has a turtle/tortoise Zoan Fruit, his bounty is $330 million, he's a proficient Haki user etc). A trend with Oda, that I've personally noticed, is that he reveals more information quickly about less important characters--this trend mostly revolves around antagonists--than he does about more important characters.