Laz’s glove can heal for 1 or 2 bars more than daisy’s tongue
Laz can top off hunters if the hunters survive a boss fight
However, daisy dramatically increases the survivability of the group by being affectively the lowest priority target since she does no damage.
Then of course there is the thank daisy hallelujah drop ship.
plus Laz’s glove doesn’t work on eaten bodies, which can be problematic from time to time.
Overall, I think Laz is a better pure healer than daisy, but the fact it’s even close is lamentable.