I just bought a 21" Sven saw and like the quality feel of it, I have not cut with it yet but do like the small size it folds down to. I have been leaving my bow saw home due to it's size.
I'm carrying (not often used) a Fiskars bow saw purchased from Home Depot. Fits nicely under the back seat of my XJ and the one time I used it, worked like a champ.
Mine has a type 23 blade for green wood, but does great on either. I have never tried a type 51 blade for dry wood (I don't build many fires as I am mildly allergic to smoke).