Gamabunta
Alright, the big boss man and one of the original summons for the three-way deadlock. His size is definitely a doozy, but in certain situations it could really be problematic, though overall it is an advantage. Accompanied with his size, his proficiency with water techniques adds on to his threat level, being capable of using S-Rank techniques is pretty nice. Gama's durability also isn't too shabby, his rough body and size allows him to tank B-Rank techniques without an issue, I like it.
Gamaken
Oh, this is the one with that spiked fork thing, and the dinner plate as a shield, I like him. His shield is useful for defending against attacks that have a wide range of damage, such as water techniques that attempt to flood the field, or fire mainly. It turns out this guy is probably the most agile of the big three toads, making him extremely useful when dealing with other summons of a similar size.
Gamahiro
Am I missing something, why do all the toads have like a "Gama" prefix? Anyway. Hiro is basically like Gamaken, even rivaling him in speed and agility, but take away Ken's shield, and this is what you basically have. Taking the kenjutsu specialty to another level, he has two swords resting on his back for whenever he needs to stop messing around and slice some people up.