Belated NGD

countryblues75,

Welcome to the Cabin.
Congratulations on the new Seagull Guitar, you got yourself a real beauty there, Cedar top guitars by Seagull in my opinion of the best sounding guitars they make.
I have the Simon and Patrick, Woodland Pro ASW Folk Guitar, very nice Guitar just wish it had a wider nut 1 11/16 inch is a little tight, also think it's a bit expensive. Would like to try some of the Concert Hall models, but as rare as rocking horse poo here in the UK.

countryblues75, Congrats on the new lady!

The S6 cedar topped dread from Seagull is, imho, the flagship of Godin's acoustics and still one of their best guitars for good reason.   You have the high gloss topped one as well which is especially pretty.  Very nice looking and sounding guitar!

As for your question, the only real answer you're gonna get is from yourself.  I really hope you have the ability to play test them and highly recommend you do so.  Go try the folk, concert hall and the sws models if possible; all at the same time would be best, again, if possible and you will surely get the right answer.    Your opinion on this is the most important so go out there and play them and have fun and enjoy the experience of hearing them all and finding out which one sings to you the loudest. 

If you can get a deal and it's within your budget, I do think the Maritime CH or Folk, or the Artist Studio CH would be a nice contrast to your S6 dread. 

I would not recommend, but again, just my opinion, the Folk or CH models from the Coastline, S6, Performer or Natural Elements lines because you'd basically just be getting a guitar that has a smaller and thinner sound than yours, and probably similar in most cases.  That's not much fun.  LOL.  But again, play 'em all and the sought after answer to your question will be revealed.