I suppose it depends on your goals. O lifts can offer a lot of benefits when geared towards a specific purpose. I like using them because I think they’re beneficial in assessing power output and exploit full use of highly technical motor function movements, as well as being barometers for all around skill in lifting. As far as strength goes…yeah it takes a lot to deadlift and pull any signifcant amount of weight to your shoulders/overhead, but it’s more of a skill.
The two parts that require more strength are the first pull from the floor and the front/overhead squat portion of the movement. So to break the lift down into using for strength, it goes back to squats and deadlifts. As a power exercises,I’d use the hang versions of the pull. I usually use Hang cleans,power jerks,push presses and front squats which are the easiest variations but also can get you explosive and muscular when used correctly and are geared for non Olifters, to use the O lifts. If you want to be a professionalO lifter, find a coach.
Higher sets, i.e 3-5 will develop more hypertrophy in the delts and traps in cleans and snatches, and possibly the lower backlike no other exercise. I would say the legs as well, but i squat and deadlift religiously, so those could be responsible for that. It does help the hips learn to fire explosively however, a plus for deadlifters and squatters, and possibly even in benching, if you plan on lifting max weights in those lifts. For a strength athlete,going above 5 can be detrimental, as these compound movements require a very fresh nervous system. Lower sets such as singles and doubles will develop power and are best done when the CNS is fresh and of course always with perfect technique.