Ghaleon looks plain evil imo. I understand where you're coming from. Though I feel the change of letting Luna travel longer with Alex makes her (SPOILER)kidnapping more emotionally charged cause you got to spend more time with her and she grew on you more. It also made the final scene in the game much more powerful. I don't understand why games don't use that trick as often.
Her boat scene is also one of the highlights of the PSX version. I feel the PSX version gave Luna more chances to grow on the character and expand her beyond simple "childhood friend with a secret". For new fans, they might feel cheated out of that particular plot twist but I feel the game more than makes up for it with strengthening the games awesome characters.
EDIT:
The amusing thing about the different openings is how each represents a different part of the game. The original focuses on the second half while the remake focuses on the first half (with a slight hint of the second.)