Take your date that gives you the most time. I know it's exciting thinking baby is coming sooner and we all want them sooner than later, but by going on your own dates (ideal) or the latest dates, you and baby will be better off and less likely to have an induction too soon...

As per the article I wrote on inductions (easier to copy and paste LOL):

Being offered an induction

You are most likely to be offered an induction if you are post-dates (remembering that it’s considered a full-term pregnancy between 38-42 weeks), if your Ob ‘thinks’ you have a big baby / small pelvis or if there are health issues detrimental to either mother or baby. If all is well, there may be several reasons why baby hasn’t come yet. Your baby simply may not be ready – the due date may have been miscalculated by mother or machine. Ultrasounds are notoriously inaccurate for pinpointing the day of birth (around 3-5% of babies are born on their ‘due date’). They acknowledge that they are plus or minus 7 to 10 days either side of the estimated due dates. This is because they calculate these dates based on mathematics and averages, not your own baby and the unique rate at which he or she grows. Even first trimester ultrasound can be inaccurate by 5 days either side.

Babies can be born from inductions unexpectedly premature (i.e. were not as advanced for dates as ultrasound detected) based on miscalculated due dates and then may have breathing problems resulting in artificial breathing assistance which is not a pleasant experience for all involved. They may also be more prone to infection.

Another reason baby might not have arrived on time is that occasionally the problem is anxiety or stress in the mother resulting in the slow onset of labour. Adrenaline in the system is not helpful to oxytocin production. You might be familiar with the ‘flight or fight’ response we have as humans. If we don’t feel safe, our bodies don’t want our babies to come until we are in a safe place and can ‘let go’.