Honeymooning in Florida

We are honeymooning in Orlando, and only doing one week as we can’t afford to take an extra week. We would be arriving on a Saturday and leaving the next Saturday. Would it be better to do two days at Disney or get the 3 day ticket for Universal and visit the new park? The prices are about the same so we don’t really care, but also I feel like 3 days is a lot since we only have 6 days.