Both paint manufactures will try and sell you paint. Know that.
I used SW solid stain on the outside of our wood barn and riding arena. Then it started to fail in various areas and when we called SW out, even though they claim a guarantee, they wouldn't stand behind it.
That can be a little different type of attitude than when they are selling you their brand of paint beforehand.
Roughly 15 years back, SW went through a re-organization here and ever since, service hasn't been the same.
I ended up doing a tear down on the structure, with about a 300 board replace.
On each replacement piece - I ended up clear sealing the inside, and painting the other 5 sides after they were cut-to-fit before nailing, all laid out on saw horses. That bottom edge is definitely a weak spot when barns, are put up green and it can be tough to reach that inner concealed bottom edge where moisture draws.
If possible, I would go with semi-transparent stain over solid stain or paint :thumbsup: