Instead of saying what is total body workout is best, I would use the guidelines for exercise programming for seniors to guide you.
As you know the body changes as we age and the principles related to exercise programming for the healthy older adult change as well.
I would recommend that you purchase the eighth edition of ACSM’s Guidelines for Exercise Testing and Prescription and allow that to give you some direction as far as designing a total body program for your clients.
One thing I’d like to add that it is important to know what the goals of your clients are. Are they health or fitness. Do they want to increase their ability to perform ADLs.
It’s difficult to say what is best when one doesn’t know the condition of the individuals.
I wish you all the best!