All mod rooms are bigger than values, if you're talking about standard rooms versus the suites at the Values.
Standard Value rooms are I think in the 260 sq. ft. range. Each room would have 2 double/full beds or one king sized
Mods are 314 sq. ft, except (I think) for Caribbean Beach which is closer to 340. All moderate rooms would have 2 queen sized beds or one king, except for Caribbean Beach; they have traditionally housed 2 double'full sized beds or one king as well, though I know they're undergoing a change and will eventually remove those double'full beds and replace them with queen sized beds (eaving the rooms with king sized beds alone). Only trouble is I don't think you could guarantee yourself a queen sized bed room even if you asked for one. I believe the buildings closest to the main building have already rec'd the new beds.
I'd ask your gent if any other mod is an option, just to play it safe, but I'd definitely make a move to a mod with 4 adults in one rooms. Honestly I think 2 people in a Value can be a bit claustrophobic but do-able, I wouldn't want to spend an entire trip in a Value, especially with the smaller beds, I wouldn't even be able to share a bed with my wife unless it were at least queen sized.