I agree with the others, what you like doing is what you should do. I prefer the splits but upper and lower. I don't like the one, two body parts for 30 minutes or more.
I like to do all upper in 30-40 minutes and all lower in 30-40 minutes. If I can get it done quicker that is great with me.
I don't like the total body as it seems there compound moves and I can't lift as heavy as the upper/lower split. I can lift a lot heavier for lower body but if I am doing a shoulder exercise with legs then the weight is lighter
do what you enjoy, that to me is what exercise is about. What you like doing you will do, otherwise it becomes a chore and like anyone else I don't like to do chores