I have two boats, one identical to yours, a Lund, and one a Boston Whaler the same length. I’m old enough I don’t fish rough water when the wind blows on Sakakawea or Oahe so have no dog in this fight, and use my fiberglass Whaler only on Lake Havasu AZ which is a long relatively narrow lake surrounded by cliffs and mountains. Usually it’s pretty calm, but sometimes you can get caught in pretty big waves from a wind tunnel effect down the straight gorge/canyon of the lake.
When I bought the whaler I assumed the hull shape would pound the heck out of you in rough water, but having used it in big waves there a number of times I’ve been absolutely astounded by how smooth it rides and how dry a ride it is. And how stable fishing in wind. Can’t remember my trolling mother ever coming out of the water. Compared to my Lund, Wow! The guy I bought it from used to for salt water shark fishing off San Diego before he died, and I now see why he swore by it for rough water.
However, hull shape and design of a Boston Whaler ( s sort of tri hull, but not like the tri hulls of the 70’s) with the deep V design of most glass boats, is totally different and has little to do with a discussion of aluminum vs Fiberglas but ra5her different design of fiberglass hulls. It’s the design of the hull rather than the material used to mske it.
you rarely if ever see a Whaler in this neck of the woods, BUT, if I ever were to consider a new boat ( I need one like a hole in the head) I’d actually look into one and consider it strongly, I suppose is a reason there are thousands of Boston Whaler and Whaler lookalikes everywhere along the sea coast, where waves there make Sak and Oahelook like a mill pond. We always hear about the deep V fiberglass glitter boats here, but never hear about Whalers or other offshore boats designed for bigger water than ND will ever have. There must be a reason they are is such demand for civilians and law enforcement, coast guard, rescue boats, etc.