I use 4000 coins at upgrade cost which is girl level 58.
So for girls level 58 stage 2-1 is 50% better than 12-3.
For all girls under level 58 stage 2-1 is more then 50% better.
For girls level 70 stage 2-1 might just be 30% better 12-3.
I don't have any girls passed level 70 so I really don't know about those.
I am free player so I don't think I really have to worry about getting girls to level higher the 70 anytime soon.

Originally Posted by Opalia24

I use 4000 coins at upgrade cost which is girl level 58.

Since when?...

->Open Spoiler<-

It's already higher than 4k at level 46 and still corresponds to what i said about your girl's level times 100.

Originally Posted by Opalia24

I am free player so I don't think I really have to worry about getting girls to level higher the 70 anytime soon.

Each event gives a 5* unit and they all go to level 70 when evolved.

Edit:
I went and checked, and it actually is cheaper for unevolved girls with my unevolved 42 girl being at 3k per fodder. However as you can see it is more expensive when evolved. So i can agree with, and have said so earlier in the thread, that 2-1 is much better before evolving at hitting level 40ish, but after that it is going to be incredibly expensive AND exp using.

Edit2:
And then people wonder what the lovely part of 12-3 is...
http://i.imgur.com/agdm4dN.png
http://i.imgur.com/jZqO1UH.png

And then you are hit with the sadness of not having enough money to lvl up the 5* and give them ampys at the same time xD. Anyway, i'm also a user of 12-3, for every girl past lvl 30. I would use it too, even if it were only for saving sanity points. The equpment seed from the raid boss once you are finished is also nice.

I was somewhat inefficient t the beggining, and now i'm almost broke, i don't know how i will raise the money to lvl up lily, bippina, lavender and evolve edelweiss. I should also hoard a bit, but bippina is taking the manyus. :S Anyway, i don't think 1-3/2-1 is an option past certain point.

Originally Posted by kojaku

And then you are hit with the sadness of not having enough money to lvl up the 5* and give them ampys at the same time xD. Anyway, i'm also a user of 12-3, for every girl past lvl 30. I would use it too, even if it were only for saving sanity points. The equpment seed from the raid boss once you are finished is also nice.

I was somewhat inefficient t the beggining, and now i'm almost broke, i don't know how i will raise the money to lvl up lily, bippina, lavender and evolve edelweiss. I should also hoard a bit, but bippina is taking the manyus. :S Anyway, i don't think 1-3/2-1 is an option past certain point.

The equipment seeds thing is actually the main reason I switched off 1-3/3-1 fairly early (pretty much as soon as I could clear chapter 12 maps easily). A good piece of equipment is worth a ton of stats and is another factor in improving your team strength other than raw manyu exp/stamina. Especially if you're running 3-star girls or the event 5-stars, since you'll usually have 4-slots on all of them and a full set of equipment is huge.

The equipment seeds are actually something i totally forgot about. Yes those bosses do indeed not spawn from 2-1 and is also something to take into consideration.

Indeed, I have a Warrior Ring +10 (Level 14) = Atk +1169!

Originally Posted by Zenithale

Indeed, I have a Warrior Ring +10 (Level 14) = Atk +1169!

Which is as almost much attack stats as you'd get from leveling most girls from 1 to 50. And a level 30 (max) Defense Bracelet +10 gives 619 defense, which is about how much you get from leveling most girls from 1 to 50 (or even 1 to 60) and is nearly half the total defense of some level 60 evo'd 3-star girls.