Toyota may be a little bit better because so many people say "Toyota is best" and I also find interior in my GSF is more refine than my wife's M35X. I still think my two Nissans (2007 G35S and 2010 M35X) are very good and reliable. If my 2017 GSF wants to beat those two Nissans in reliability, it's definitely NOT EASY!!! Let's wait and see...
By the way the battery in my wife's 2010 M35X is still very good and original and most of trips were short and only 3-5 miles for the past near 8 years...