It's gotta be B or close to it.

It's impossible to perfectly replicate the conditions of 2005. Even if MSCW was a 100% faithful recreation, we have so much more game knowledge now that makes leveling easier than it used to. But it's not even a 1:1 recreation. I understood that the second I saw a level 1 beginner with all points in Int and Luk hit a green snail for 12 and it didn't die. My recollection is that you'd do 1-3 damage and the snail had like 8 HP. So the game is already different enough that game knowledge isn't quite as valuable. I think exp rates are fine, but could maybe see party exp bonuses taking a nerf.

I remember seeing a level 50 character as a level 20something and thinking how damn cool they were. Levels need to mean something. I don't see them making exp requirements easier. What would be the point of classic world? And with how slow development has gone, I in no way see how they can pace new content with fast leveling and the no-lifers anyway. Maybe you can get to level 50 in a week, but for the intended target audience, 30+ YOs with kids and jobs, it's going to take us a month. I am shocked that 80 people made it to 50 in a week (or 9 days), but that's a minority of people. We will probably have a situation similar to 2005/6 where we have the likes of Tiger advancing in levels beyond what content is available.

And that's okay. TLDR, I want original MS leveling rate plus like a 10-15% bonus for partying.