Good sides of the Legion:
- Order and Peace. No raiders, no gangs, mutant animal attacks probably down as well.
- Solid, efficient economy backed by Gold currency
- Minimal Corruption; Corruption stomped down without mercy
- No Drugs and general debauchery and degeneracy
- Adequate supply of Water, Food and Energy.
- No/Neglibible racism (that we know of, I don't remember the Legion being anti-mutant or anti-ghoul).
Well, order and peace is something NCR got as well back home, with raiders, gangs and mutants eliminated or driven off. No drugs (or modern medicine) - yeah, sure, it's kind of hard to party when you are under a constant threat of torture and death. As for the actual economy stuff, there's really nothing in the game that suggest this. You get to talk to
one merchant that deals in the Legion territory and all he says is that is safe to travel there. Personally, I really doubt it. Before the conquest, that was a primitive tribal country, and the Legion is practically technophobic. That's not a good combination to make a solid economy in such a short time. Nothing about racism in the game either.
Here's what we do see in the game - Legion regularly does morally repugnant actions. Legion soldiers are little more than slaves themselves, utterly obedient to Caesar and nothing else. Legion is heavily dependent on slavery, with no sign of any modern transportation or indeed, any modern technology except some weapons. Legion regularly does slave raids or buys slaves from Fiends and the like. You can talk with one slave in the Fort and see several more at work or crucified, and no, this does not paint a nice picture at all. You can also find crucified or killed prisoners of war or slaves (including female slaves) in the game.
Now let's compare that to NCR from the perspective of your average citizen:
You can travel or live just as safely.
You have a fucking railroad to travel with.
You can easily get a safe and boring job at one of the ranches or mills.
You can get treated by a real doctor with modern medicine.
You are not going to get your head chopped off or crucified for saying that the President is an asshole.
In fact, you are not gong to be killed or imprisoned without at least some due process, flawed or not.
If you are male, you are not going to get conscripted in what is practically a slave army.
If you are female, you are not going to be treated as inferior or outright enslaved.
This is in the game, you can learn it from Cass or other NPCs, you can see the railroad tracks, you can hear NCR people criticize their leadership, see men and women not treated as cattle.