I have not stayed at any of the mods but I can tell you the things I do know about a few of the mods.
PRO- POR has a food court that is awesome (we have eaten there) compared to most Disney food courts and it also has a resort boat that goes to DTD (we have used this boat numerous times)
CON- CSR has motion sensors on the air conditioners and when nobody is moving around the room at night the air cuts off. From reports I have read you can get maintenance to come bypass the unit every 2 days to where it will stay on at night. Too much trouble for me. BUT CSR does have a good food court Pepper Market (IF YOU ARE ON the dining plan- OTHERWISE it is very expensive and you have to pay gratuities for CS meals)
PRO- POFQ is very small and even if you do not pay for a preferred room you are still close to everything.
PRO- POR has the longest pool slide on Disney property. If you have kids that might be a big perk.
CBR- CON it is a very big spread out resort and if you aren't in a preferred room you may spend a lot of time on buses getting around the resort or walking great distances. Also I don't much care for its' sit down restaurant but you can check the menu on Allears.
PRO- all mods...if they offer
free dining you get the
DDP sit down plan instead of the QSDP you get in the values.