Please read this whole post before responding as there are several unique factors to consider for this game.
Relevant Character Creation Rules
Please under no circumstance let this topic drift into discussion of Tiers as that is banned on MW.
As the head GM of the project, it is my job to organize and maintain game balance.
I will assure you that while you might be concerned that game balance in this kind of model is impossible to maintain, we have figured out a proprietary system that I won't bother explaining but you can feel free to peruse the entire wiki if you are concerned with how it works.
What we are currently considering is whether or not to allow PrC's and I've decided to ask the MW community about what they think.
There are several points to make for and against this, but lets stick with the big one for now.
My primary concern as Head GM is game balance, further, the game does not allow evil alignment and that restriction will not be changed to include any PrC (assassin, blackguard, etc.). It is worth noting we cater to beginner level players as well as old school min/max munchkins, so the goal is to even out the power balance and create the least amount of power spread. This is tough though because the system is already imbalanced by design.
I realize fully that certain characters are level specific, for example at level 1 a Barbarian or Psi is probably going to steal the show (as far as combat goes), less so at level 20 (especially since we're using WBL).
Now I'm not a fan of strictly banning the arcane caster PrCs and allowing the others because that will undoubtedly create a backlash from the community at some point (How come he gets to but I don't? It's not that big of a deal!?!?! I promise I won't abuse my powers!).
In no case is a PrC considered a nerf, if anything they are power enhancers, incredibly so with the arcane casters.
The question posed though, is something for the experienced players to give their opinions on... (please note we do offer several variants already).
Going back to the caster classes, is a Wizard/Loremaster/Archmage compared to, say, Rogue really that much more world shattering than straight Wizard vs. the same Rogue? When you play a Rogue, Fighter, Monk, etc. you know you have to work within the limitations of the class. Wizards, Clerics, and Druids, with or without PrCs, are only limited by the creativity of the player and the oversight of the DM at top tiers.
Is giving them a further boost (essentially making them infinity +1 rather than just plain old infinity) while giving the other classes a boost a reasonable sacrifice in the interest of evening out the playing field? And more specifically, does this decrease the over all power spread or decrease it?
When answering please keep in mind that I'm not a whiz at D&D though I do understand PBP and RPGs very well. Much like the US President, while I run the CRI, I don't know how half of it gets done. I act as a mouthpiece, oversee it, take corrective actions and help stimulate policy, but that's about it, so please offer the technical system specific jargon and then translate at layman level (I need both).
Before anyone asks, we are accepting more DM's but we are not yet accepting more players until we get more DMs signed off. Please do not post here with interest. DM interest can be posted by responding to THIS THREAD.