The second story IMO is the only good one.
The rest are shit. An argument can be made for the third one, space in time… but nah. They ruined the entire universe lore with the shit ending there. So every game before it and after is retconned and it destroys all journeys to be meaningless.
I pretend only SO2 ever came out and the rest doesn’t exist.
I remember the excitement surrounding the release of Star Ocean 3.
The intro sequence is still etched in my memory:
After this stellar second opus (hehe), we thought we had the crème de la crème of JRPGs. After that, it wasn't a huge disappointment either, but it was very polarizing. The series only declined dramatically after this episode. Such a shame.
In fact, it reminds me a little of Phantasy Star in another way. After IV and the transition to mmo, this license disappeared. So much potential in these two IPs, and it's all been wasted.
Anyway, that's not the point. Dragon Quest is a winner here.