Currently running 2015 Dodge Durango RT AWD. It tows very well, plenty of power, stops great. I would absolutely buy another one, but I'm moving on to a truck. Boat is an 18' BC Cougar FTD for size and weight reference.
2018 Bass Cat Cougar FTD/ Mercury 250 Pro XS
What about a Nissan Armada ?
Sorry, just reread original post, you said midsized.
This time last year, I was in a similar situation as you, except the vehicle was for me.
I wound up with a Nissan frontier. Put a topper on it, it's an SUV.
Although, as someone said, if Mama found one she likes....
Isn't the Nissan Pathfinder rated at 6000#'s?
Honda passport or pilot. Wife has a passport and she pulls my 21 ft Ranger.