I am in the same
I am about to start the process with my fiance as well. There is a 6 month time frame difference between the K1 and the Spouse Visa for us. Despite the fact that I want him here with me as soon as possible, we decided to go with the Spouse visa because it will be so much cheaper, easier to obtain and easier for me because he would able to work almost immediately after arriving here versus myself having to take on a 3rd job to support him to. And they are talking about raising the fees in the next couple of months. The Spousal visa won't go up too drastically but the K1 will.
According to a previous reply, the time difference for you and your fiance is a month. I'd definitely go the Spousal Visa route if I were you.
