New units. Their discussion and selection of upgrades.

So, here's my question: which new units in Sylvan do you buy, and which ones do you not?

Which upgrades and for which creatures in the Light Elf Castle do you choose?

Let's find 10 differences? And more detailed, for each level, and no one would interfere with expressing opinions there. The topics are identical; a poll is not the thing that decides anything when tactical capabilities are described.