AfterShafter said:
Well, the way I look at it is... If the +25% boost will make a rifleman go from 3 to 2 turns in my best production city, while the +2 xp bonus will not actually get them an upgrade out the gate, I consider it worthwhile... Particularly when I'm at a tech disadvantage and need throwaway more than elite units.
Hell, sometimes the 25% bonus allows you take make sacrificial catapults every turn rather than every two turns. That's a huge benefit, moreso than an upgrade on those catapults.
I'm going to try restate AfterShafter's point, because I think it has real merit, but has been lost as this thread progresses.
Two styles of military prowess....
One tends to stem from those who intend on fighting wars and conquering others. This style usually wants a core army of strong city taking forces. You build it in the Ancient/Classical era, then nurse/upgrade it throughout the game. You use Siege weapons for bombardment, and maybe suicide one now and then, but generally, once the defenses are down you're attacking with the rest of the Army. When that city falls, you heal up the Army, wait for the CG units to arrive, and move the Army on toward the next one.
For this style, stacking advisors is perfect, since it allows you to build highly trained attack units to replenish the core units you lose.
A second style is more of a builder style. You tend to build a large force of defensive and counter-attack troops as a means of peace through strength. You don't fight many wars, and when you do, they're done for diplomatic reasons, or to take just one or two cities for border or resource purposes. You use Siege weapons for bombardment, but will then often suicide most of them, until the defending army can be taken by the CG and counter attack units you've brought to take and hold the city. When the city falls, those units heal and stay with the city, while a different set of CG/field/siege units move to attack a different city. You never really build a core group of highly trained units for a city taking army.
For that syle, building a few military academies in a few different cities may make more sense. It allows you to more quickly pump out the CG/field/siege units that you'll need for the short war. Since you're not relying on well-trained troops (i.e. quantity over quality), stacking advisors isn't as helpful.