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

You explain everything clearly, but I find it hard to believe that you use a force field or teleport more often than slow or haste?

By the way, that's exactly how it is; I use the 3rd level more often. But not teleport, but oblivion. Teleport is not used that often; well, it's understandable that in the beginning, it's the 1st level, and then it depends on how it goes... I'm saying that I like to combine these two levels, when you can't do without the 1st one.