Who has the archer stack right now?

the question of "how to best defeat neutrals" doesn't seem too important to me

meaning, do you just tear through everyone??)

it doesn't matter who reaches the destination in two turns, but not faster: these usually skip their turn themselves

first they skip, then they are forced to go under direct fire - if we have someone to wait with before the archers. If not, then on the contrary, their top stack goes forward and here the archers have an advantage from above - they can reach directly, and the lower ones may not.

when fighting against archers -- go up

only if the speeds are the same (and we don't have anyone faster) - it was mentioned in the obvious exceptions.

and it's still better to take tactics as soon as possible

still, tactics are not the most important thing; there is also the turn order.