Oh if its just a theoretical Q then I'd say it depends what youve been doing for the past few months and how your body responds to different frequency. One isnt inherently better than the other.
Try it out. Rule of thumb for volume and frequency. THe more frequent you train a muscle the less volume you should use. How much is up to you.
Id reduce the volume by 25-30% if you train a muscle 2x per week in a 6-10 range. If you train in a lower rep range you may want to cut the volume more