If there's anyone....

currently trying to look for a banner to use their orbs on or trying to reroll(unless you are looking for specific units)

THEN

look no further!
This new Legendary banner is the best one out there, as of yet!
Red stones, Blue Stones, Green Stones and Colorless stones.

You can classify some of these units as the best in their respective classes and even colors. Not to mention that some of these units also hold some of the very best and most elusive fodder out there(Elise, L! Ike, B! Ike and even Distance Defence, Distant counter, Vengeful Fighter and more....)

If you are looking for Armor Emblem,
This banner literally gives you an almost already made one!
L! Hector, W! Tharja and V! Lyn.

Imo, Go for this with every orb you got cause banners like this rarely appear.(unless of course, you couldn't care about that and are just here to look for specific heroes or you already have these units and have plenty of fodders left).