"Pilaf is most commonly associated with the One-Star Dragon Ball, as he was the one in possession of it during Goku's first two quests for them. Even in Dragon Ball GT, when he discovers the Black Star Dragon Balls, the One-Star Ball is the one he picks up." -DragonBall Wikia
The waist clips on the Obitsu stands are more secure and come in multiple sizes, otherwise they're pretty similar to the normal Tamashii stands. The arms on both of them are probably able to hold the same amount of weight, but heavier stuff can fall out of the Tamashii stand's waist clips. I guess the heaviest DBZ Figuart is Broly, and the Obitsu stand can certainly hold him up in the air.
I've never used a Trident Stand before. They seem fine enough, but they seem to use the same clips and the Tamashii act 4 stands.