Just want to know which is better. Thanks
Depends what kind of setup you want.
If you're going for a sweeper or hyperoffensive or such, go with Origin. It has more attack than 724 Pokemon and better special attack than 754 Pokemon. 183 Pokemon outspeed it, so Phantom Force is a good move to put on it.
If you're going for a wall or tank, go with Altered. It has a good defense, so you can Toxic stall.