solarex

I'm a USAGPAN Grad and will come at your question based on my training.
Question 1. For cases where paralytic is not needed, but you have an ETT in (d/t airway control, NPO status, etc...) why wouldn't you just paralyze anyways so you use significantly less volatile gas and have better hemodynamics?  Answer.....you are arguing to paralyze in order to give LESS of something (gas). That's reasonable, but....Neostigmine and Robinul are 2 drugs, so you aren't giving "less of anything."  as for hemodynamic stability, fluids and pressors are for a reason.  The gas is primarily for memory, recall, to not remember, and shouldn't be strictly based on their BP.  If you have a person who can't tolerate 0.8 MAC or 1.0 MAC without Blood Pressure issues, then fix the Blood pressure issue with a medicine directly designed for Blood pressure issues.
You mentioned Suggamadex.  Think about cost.  I promise you, if you work at a smaller place in the future, which means you are more independent and generally make more money, giving Suggamadex regularily will get you a meeting with the Chief and Pharmacy Director.
You used the word "Regardless" in for or against paralyzing.  Peace of advice, NEVER used all inclusive words in anesthesia.  Noticed how I used the word "Never" in this sentence and the last sentence, this is the only time you use an all inclusive word.  There is no "always, never, 100 percent of the time, absolutely not's."  This is what separates your advanced education and advanced reasoning compared to concrete thinking so common with undergraduate nursing education.  
You mentioned narcotics to keep respiratory rates low and that there is no guarantee the patient will not flip out.  CORRECT.  A guarantee would be in the "all inclusive" categories and those don't exist.  There is also no guarantee the patient will wake up, speak again, or speak 5 languages and become a genius after the anesthetic.  You do what you can to minimize/attentuate risk.
Here's my general rule with paralysis.  Notice I wrote the word "General."  That means....there are exceptions and nothing concrete, but in general, 
1.  If I don't have an ETT in place, I don't paralyze.  That's common sense I hope for everyone on this board.
2.  ETT is in place.....the very first thought is.......what type of surgery/where are we working/gas in the belly?  If I am working around the airway in adults such as tonsils, yes, even tonsils, oral maxifacial procedures with a nasal ETT, thyroid with major vascular organs close by, carotids, I generally paralyze.  Back cases where they are prone.  This also helps the surgeon and helping the surgeon regarding relaxed muscles helps time.  It decreases the time of the surgery and decreases the amount of time under anesthesia and blood loss and in the prone position.  Gas in the belly, gallbladder, appendix.  Procedures in the thoracic cavity.  
3.  Outside of these areas above, paralysis is far more about the patient.  For example, do I have someone with a mild cough, perhaps a very recent onset URI where they are coughing on 1 MAC of gas for a Total Knee or Shoulder Surgery?  I will often paralyze them.  Do they have an incredibly reactive airway where they just love to cough?  Then I will consider relaxing them.
4.  What I generally do not do.  Make my decision to paralyze someone based on wake up time.  I also don't generally base my gas level on wake up time worries.  That's no factor.  I am good enough with gas and paralytic dosage to have 5 minute wake ups with a gas set at 1 MAC or at least 2 of 4 TO4.  One thing I recommend for you.  There is no absolute standard for wake up times, but the general consensus in Anesthesia for many years is 10 minutes from the time the sutures or stressing are on.  I know, we often do it far, far less in time than this, and the OR nurse sometimes will look at you with a 10 minute wake up, but historically, any wake up that is less than 10 minutes is satisfactory, so don't let an RN in the OR who has no concept of what anesthesia standards are rush you or goat you or pressure you to meet their wake up time.