I’m doing one similar to Charles Stayley’s A-B split (the one that he recommended in the article).
I basically just divide the body in half:
As for reps, I’ll just alternate. First time I do session A, I’ll use a 3-5RM. Second time, I’ll use a 8-10 RM. Sets will vary from session to session. Here’s why: I’ll ramp up to the working weight that I’ll use. However, I’ll do as many sets as I feel I need with that weight to fatigue my muscles. For squats it might only be 2-3 work sets, while for my back, it might be up to 6. Whatever I feel is necessary.