Healer LB is really....underwhelming.

[KisaiTenshi]

On the other hand, melee and ranged DPS LBs are almost always non-necessary. Most of the times they get used, it's because they're available, but not because they need to be used. They're routine; something to push the numbers along a little faster.

The tank and healer LBs, though, if used when needed, are life-savers, literally. They can atone for a lot of sins committed early in the fight. I would prefer to see the healer's in particular get a bit of a boost at lower levels, though. (If things are bad enough you'll need it, someone's already on the ground, most likely.)

I find that 99% of the time, DPS LB's aren't needed... in fact the LB is only being used "cause it's there" and it knocks the last 5% off the boss, which saves an entire 30 seconds from the run, oh ~yayy~~~.

The healer/tank LB on the other hand I've only ever seen used once. Mainly because the only time it's ever been used is when the Tank has been killed, and just revived as the rest of the party dies.

Most appropriate use of any LB? That 20 second countdown with the Ultima Weapon. Worst use of LB: Entire party has full HP and the boss has 10% of it's HP left and has no party-killer moves.

[Cynfael]

I find that 99% of the time, DPS LB's aren't needed... in fact the LB is only being used "cause it's there" and it knocks the last 5% off the boss, which saves an entire 30 seconds from the run, oh ~yayy~~~.

You'll find differently if you observe fights with meaningful phase changes.

LBs are fluff for casual content in that good groups don't need them, while truly bad groups probably won't be saved by them.