It depends entirely on your intensity level and the work you can put into an exercise. This is the reason why most people start out in bodybuilding doing straight sets and as they get stronger and progress more and more they switch over to either ramping, or pyramidding to a top set with their working weight.
If you can give your all and trash the target muscle group with that top set, then you probably shouldn’t be ABLE to do more sets with it afterwards. However if you aren’t at that level yet, straight sets are a perfectly good option.
Gotta make your own judgement call.