Are democratic regimes militarily better then non-democratic?

The factors for it at least today, "democratic" regimes:

• have better ecomony/technology/demography level due to different factors
• have more efficient managemend due to lower level of corruption
• distribute decision making to different levels, what reduces the mistakes from very above like in autoritarian regimes
• have (again, at least now) higher morale, since there is huge propagandize about that they fight "for freedom"

To the disadvantages would be

• Nessesity to reach agreements between multiple representatives - today you can see as this disadvantage diminishes due to... maybe some agreements what we do not really know, or general, interaction methods
• Nessasity to be bound the law, also diminishes in different ways - by law reforms and in some situtation having this strategy - you know, first you do, then put before the fact that it is done.

I avoided some points, what can be true for both autorirarian and "democracy" models, like the cooperation with same regimes, or usage of hired professionals.

What do you think about it?