I've got BOF 3 for the PS1, but I never finished it. I've finished 4 and 5 though and I loved them both. 5 is very hard though. One of the best JRPG series out there imo
Hard to decide which I like more out of 4 and 5 story wise. I wanted to play 5 through again recently so I loaded up a save mid-way thinking I would just polish it off then start again (since you keep some things from the previous playthrough), but I found it too hard to get back into sadly :/ The camera felt very akward and the controls felt weird..I guess its gameplay is too dated now or something..