ChinaV, my experience with tobacco is fairly limited (in my three years into this hobby I've grown about 10 different strains) so my "best" or favorite tobacco has only a few competitors. But I can say what I like about GCR: very uniform plants, little to no suckering before flowering, it did very well in my rocky soil. Leaves cure easily, even if picked a little early. Yeld is average, around 80-100 grams per plant. As I said before, I'm a disaster in describing tobacco flavour, probably because I only smoke cigarettes. To me, it tastes like a "concentrated" bright leaf. It is sweet tasting, even air cured, and when blended with a burley it makes a manly smoke... but it's good on its own, and has a good burning quality.
The only strain I liked more has been Yellow Pryor, but it's far harder to cure properly than GCR, and the taste is a pinch less intense. I sent some GCR seeds to Charly, who is a pipe smoker like you. I think he can give a much better description than I did...
pier