Which honeymoon cruise should I pick?

Hey everyone - looking for some advice on two amazing honeymoon options. Which would you pick and why?

For context, we would be flying from London, UK and both options are flexible, so we could add extra days on either end of the trip.

1st option: Celebrity Cruises, Celebrity Edge, 18 night Tahitian Treasures + 2 nights Sydney & 2 nights in Honolulu. 18 night cruise.

2nd Option: Princess Cruises, Royal Princess, Auckland, Hawaii & Tahiti to Los Angeles + 5 nights in Auckland, includes a wilderness tour. Plus we would also do a day trip to Hobbiton. 22 night cruise.

There’s not a big price difference between the two. My fiancé and I love Princess and there are more inclusions (as we’d get the premier package). However, I’ve only sailed on Celebrity once and the service was impeccable. Plus, it’s on the Edge which I’ve been wanting to try.

I think the Celebrity probably has better overall ports but both flights will be longer on either side of the cruise as it’ll be London - Sydney, then Honolulu - London. The princess option flies back from LA (we are not bothered about spending time there) and the flight is not bad. Extra time in NZ with Princess is a plus but with Celebrity, there’s two NZ ports & we get extra time in Hawaii. Pros and cons to both!