GF garden view vs BC 1 bed CL

[IANF]

Hi,
We currently have 2 weeks booked at BC (Garden view room) from 02/01/20 for my 50th Birthday, 3 of us DW, DD21 and myself...my DW booked it as a surprise but didn’t anticipate the crowds (1st weekend is a 9 in most parks on touring plans and 2nd weekend there is Run Disney weekend! )
DW has looked at moving to Mid Jan (16th) and we can get a 1bed suite (CL), I assume this is a 1 bed villa?
Other option is a garden view room at GF for same price!
We are veering toward the BC as was our first choice but never stayed at either... also, does it makes sense to move dates as never been in Jan?
Many thanks in advance for any advice.