If fat loss is the main goal, the program/split doesn't matter so much. Fat loss is achieved with a sensible diet. In terms of program/split, just make sure to train smart and hard to give your body a reason to maintain the muscle while in a caloric deficit.
James 1:16-17 ESV
Do not be deceived, my beloved brothers. Every good gift and every perfect gift is from above, coming down from the Father of lights
With God's help...Mens sana in corpore sano