A few minor corrections:

Quote Originally Posted by Dejnov View Post
5) There does not seem to be any debuff resistant content.
For the most part, while the majority of the tower is debuffable, there are a few floors where you'll run into highly debuff-resistant mobs.
Typically floors 8, 11, & 15.
Quote Originally Posted by Dejnov View Post
You want bench depth in that element AND you want to kill quickly.
The points from turn counters should probably not be the focus for beginners and anyone that's having trouble just completing the tower or finishing all the missions. For example, if you have an important hime that might let you complete a prior floor faster, but then you can't use her in a more troublesome floor later on for yourself, you should forget about the turn counter and just save for the more difficult floor. The medals lost on turn counters are minor, while the medals lost on failing missions is much more severe. So I wouldn't worry too much about turn counters on later floors, especially when you're having difficulties in just finishing the missions to begin with (though the first ~8 floors or so, all you really need is Solomon+soul wpn to clear with max turn points). Turn counter points are mostly for the whales who have great bench depth as you mentioned, and thus have that advantage of never lacking the himes needed to tackle any particular floor quickly.
Quote Originally Posted by Dejnov View Post
It's okay for the Himes to go down (as long as you still have three at the end of the battle).
Except for all the ones that require 5 alive.
You also mention turtle teams as being bad. Well again going back to bench depth, this will depend from player to player. For those who lack all that many himes to begin with, they might do better throwing in a planned-out turtle team on a later floor, where going all out offensive might be more risky for them and cause a mission to fail. So if you're short on viable himes, you have to come up with different setups and might have to sacrifice speed on a floor or two by using a slow/turtle setup because you have to save your other himes to clear all the missions in a later floor. Again keep in mind, the medals from clearing missions are much higher than any lost from turn counters. So it really just depends on the roster for each player, while revolving around what strats they plan to employ on each floor to clear all its missions with what they have.