Which level of magic do you use the most (Heroes of Might and Magic III)?

level 1 spells!!!
no serious battle takes place without them
slow is #1 among all spells!
I would put the portal to the town in second place
and then either teleport, or speed, or blind, it all depends on the situation:D
the least used spells by me are level 3 spells, but among them there is an exception - force field
you can do a lot with this spell:D