35 mm full-frame perspective can do alot of things. The chances of it being not wide enough is not high, but don't bet on it 100% of the time.
That said, if I could only bring 1 prime, it's indeed the 35 f1.4G with my D3.
If I had the choice of only 2 lenses, I would go for 17-35mm f2.8 (If insist on prime, I've used 20mm f2.8D for travel, a small and sharp wonder!) & 50mm f1.4. Having a wide-angle zoom is more for convenience during overseas trips.