" B) favorite choice of guitars - regardless of price - that you’ve owned/played."

Of the ones I've owned, the ones I play most of the time these days- 000 12 fret Boucher (Rosewood/Adirondack) which is great for fingerstyle and flatpicking old time tunes and a Bourgeois Slope D (Mahogany/Adirodack) which I use mostly with a flatpick but also shines as a louder fingerpicker.

Of the ones I've played, there is the 1930 OM-28 Martin I used to play at lunch break in The Guitar Shop in D.C. until they banned me from their "vault". And a Greven Jumbo (Maple/Sitka) that a friend up in Maryland still owns, every time I play it I'm overwhelmed by it's enormous sound.
Honorable mentions go to a S35 Lowden I played in SLC and I still kick myself for not finding a way to buy it and a Martin Norman Blake 12 fret (but with a 14 fret style square shoulder body) seemed like it could do a lot of things well.