Grabbing all 3 stones in PS1 meant game over. I pretty much agree with Tiamat's description, PS1 was broke. Grab all 3 stones in 2 though and its a different story, since you have more more life, or everything does less damage in that game. But the multiplayer pur PS2 over the top for me. Play with 4 people and only 3 powerstones, that game is most fun multiplayer game I've ever played.
Making this up on the spot:
Powerstone 2 Tier List:
Top:
Pride: Pride has the advantage of having attributes that are normally reserved for the big characters while retaining the size, run speed, and jump height of a normal character. For instance, big characters throw objects fast since they are strong. Throwing objects is important in powerstone, since you can't block and are open to being hit whenever you land from jumping, the best way to defend yourself is to catch the object. Its a lot harder to catch objects thrown by the big characters. He can pick up big character objects, like the glaciers on the submarine stage and throw them. This guy also gets 3 power fusions off of his power drive if you use them all right away and both of them are good. He has a mashable uppercut that can go on for decades and rockets like falcon, they don't track, but just one of them with knock off 30% On top of this he is godly in the air since he has the big character drop attack. I think most people know the way to cheese powerstones of your opponents is to do your dropping down air attack, which for most characters is an attack where you drop down onto your opponent and like kick them in the head or shit like that. If this attack hits your opponent while they are in the air though, they don't lose a stone. Big characters have a distinctive drop attack where they land on you and flatten you, if this hits in the air your opponent still loses a stone. If this guy had a double jump he'd be in a tier of his own.
Ayame: Fast run speed. Broke fucking super, grab the stones do the shurikens, grab the stones. She has a double jump which makes dodging thrown objects that are thrown THE RIGHT WAY easy for her. Bitch can turtle like a king.
High:
Gunrock: Fastest throw speed in the game. Has big people drop attack. Has the only strong attack worth noting in my opinion. Giant spinning gunrock power fusion is awesome and can do stupid damage when you learn how to use it right. Ground slam avalanche power fusion will fuck up anyone thier first time seeing it and is then guaranteed to fuck them up more once they figureo ut how to avoid it and you then you delay the drop.
Falcon: Above average damage. Double jump. Rocket power fusion does stupid damage when a bunch of the rockets hit. The other power fusion's hits can all be delayed to make dodge the thing almost impossible.
WangTang: Average in almost every way, but is one of 2 characters in the game that can make both of his power fusion connect completely. If spirit bomb connects, the whole DBZ kick super will land.
Galuda: This guy has the advantage of not needing powerstones to win, which is good because all of his transform shit is useless. Big people strength, throw speed, and drop attack. Fastest run speed out of the big characters. Big people own at this at this game.
Ryoma: Has a sword, he gotta be good right? Is the other character with a full combo on his power fusions. Crescent moons combos into super electricity flips. Too bad the damage on the 2nd one sucks. You're better off using his power drive attack which is like a 5 hit combo that does more damage.
Mid:
Rouge: Highest single jump in the game. Forget her power fusions, when you get the stones just keep doing her normal powerdrive attack, its that good.
Ryoma: Has a sword, he gotta be good right? Is the other character with a full combo on his power fusions. Crescent moons combos into super electricity flips. Too bad the damage on the 2nd one sucks. You're better off using his power drive attack which is like a 5 hit combo that does more damage.
Pete: Small target. Has power fusions that change when he's in the air or on the ground. Does SBK.
Gourmand: I hate looking at this character. But he's a big character so he can't suck. I don't remember his power fusions being anything to write home about.
Accel: Fast run speed average everything else. Power drive attack fails, bullet power fusion is a joke to dodge, motorcycle power fusion would be good if he could hit you more than twice with it.
Low:
Julia: Has an awesome gimmick to her power drive. Her power drive attack freezes you and guarantees her merry go round power fusion which has 1337 music. She has a big people drop attack if i remember correctly. On the ground untransformed I think she is the worst character in the game.
Jack: I'm not sure this guy can attack with anything other than his normal poke, which has stupid short range. He has a high jump but I think that fucks him over since his drop attack is a sort of corkscrew kick that goes down at an angle. Power fusions fail, all you have to do is walk away from this character to win.
Not really in the game tier:
Mel: OMG GETS 4 POWER FUSIONS FOR HER BAR?! That would be awesome if they all weren't also a joke to avoid. ALERT: this character is a shitty version of julia. Is the same fucking character with wings when she gets powerstones. This enables her to float, which means she can do nothing for a really long time in the air.