I have not read that anywhere else, and would be very interested since I booked a standard in lieu of a full size. Is this the post you mean, on the Oct rental thread:
"I called
Alamo and asked about the standard and fullsize being on the same aisle at MCO. I called that specific location and they said they are separate aisles now. Not sure if I believed her but since I really need the space I am going with a fullsize."
I'll wait to see what people just coming back say. Usually the price difference is pretty small between the two size classes for Orlando- for my rental its under 10 for almost two weeks.