I beat FF5 once.
It wasn't terribly exciting. There were a few cool special jobs. But for the most part most skills were just borrowed from FF4 characters specials. Instead of having special moves/character you have them per job.
I didn't like it as much because the characters were kind of just featureless blobs. You could make them whatever you wanted, and there wasn't really that much in the way of character development.
If you liked Kain, Edge, Rydia and Cecil make yourself a Dragoon, a Ninja with secondary Samurai, a Summoner with secondary Black, and a Knight with secondary White. Presto, Kain, Edge Ryida and Cecil, but with no particular character background to really make you care who is who..
To make it worse the stands are all so even, no character is even particular good at anything (stats change with job though).
One character has like maybe 2 points more strenght, one has 2 points more magic, one has 2 points more stamina and one has 2 points more speed.
When you attributes are between 40 and 50 base and I think you get about a 20-30 point boost to a job's primary attribute an extra 2 points is pretty minimal.
I basically just chose jobs based on what each person's icon looked best as (each job looked similar but different for each character).
Sure you might get used to using Jump attacks or Kick then lose the appropriate character, but at least the characters had some feeling to them in FF4.
In FF6 you got that back, anyone could use magic so that didn't count as a "speical" ability, but everyone had some special trait, and there was more character development.
5 wasn't bad, but no where near as good as 4 or 6.