What’s the best complete exercise methodology for a 60+ man in good health?

I’m 63 and feel terrific. I try to do 200 pushups everyday, plus crunches, sit-ups and leg raises. We should be exercising daily I believe. Our bodies were meant to be used. My pushups and ab work are my warm-up. Then, I have a 5 day cycle of weight lifting – chest, back, shoulders, arms and legs/glutes. Lots of bench pressing, pull-ups, pull downs, squats and lunges. Keep it simple but push relatively heavy. And then, treat yourself to some chocolate! It’s a health food.