Which block do you prefer to build with?
I build redstone circuits, and a lot of them need a display. I use redstone lamps there.
I use Glowstone less, because I prefer other blocks like lanterns or sea lanterns.
I use Glowstone because I don't feel like having to hide the whole Redstone circuit
I actually prefer to build with sea lanterns.
Depends on.
Should the lighting be switched on and off? Then Redstone.
If the lighting is simply to be permanent, then Glowstone.
P.S.: At least with the two options available. Otherwise, I tend to do permanent lighting with torches.
I find redstone lamps more beautiful