I agree, tests vs units would give the judgement a more representative result.
But firebolt towers are no must for top lvl bases. Skulls are a must there, and anything else (in terms of towers) is optional. Some have only skulls, some mix in some boosted bomb or firebolt towers, some have relatively many firebolt towers, some also have snakes (though, getting less and less), but the only must is skulls.
I Agree with you that Skull Tower is a must. Firebolt Tower, Snake Tower and Bomb Tower are now the Optional choices. I’m just saying Archer Towers could totally fit into the Optional category! Into the Kingslayer category(Snake Tower and Archer Tower can totally HURT Kings!)
I’m aware that top level it’s pretty much like 3-5 ish Firebolt Towers at hard to reach places(Waste time to kill), while using majority Skulls Towers(Tank, Aoe, Highest DPS when you cant toss bombs back which is the case for Troops) and 3-6 Elite Boosted Bomb Tower(Longest range, Tank, Aoe, Can’t be Toss back by Troops)
Most people preferred Skull + Bomb combo to eliminate Troops. No one bothers on killing the King anymore…
The key point here is, Archer Tower can out DPS Firebolt Towers on Kings, especially late game. Have longer range at certain points and still boostable! Why aren’t people using them as Optionals?
In addition, Firebolts cannot be attacked cross-lane. I’m quickly finding my elite arbs in affective against them, as well as are my cannons ._. Cannons, definitely, are a major reason to have Firebolt towers… But only when placed strategically.
In addition, Firebolts are quite hard to get to. If you put it behind a Lv.14 Boosted Barricade, it get be an entire 7 seconds before the enemy king could even touch it.
However you need some few Firebolt towers to “break” the recover of king’s health otherwise if there are only skulls tower you can pass throughout path without getting damage from them ^^ (leaving aside waves)