Spring or Fall?

I am enrolled at a four year university and was wondering if it would be easier to transfer for the spring or for the fall? I’m currently in Business Undecided and am taking Macroeconomics, Calc, Gov, Comp 1, and Communication. I had a 3.95 in high school (don’t know if that matters) and was averagely involved. Also, if I was accepted in the spring could I defer to fall if I chose to?

oh- and I plan to apply to mccombs as my first and undecided for cola second