I love the 14-23mm combo, they combine in a very natural way.
However, I always found 23-56mm too much hassle switching lenses back & forth. I prefer 35mm instead of 56mm, it's much more flexible. 56mm is restrictive, it' excels in single portraits and that's it, whereas 35mm can do portraits of both singles and couples. Because of that, 35mm is my favorite for family and weddings. By flexible I also mean that with a 35 you can step back and mimic a 23 without needing a lens change, or step forward and mimic a 56. But you can never step back far enough with a 56 to mimic a 23! Neither can you step forward with a 23 for a headshot without hideous head distortion!! So you end up switching lenses all the time and wish you had chosen a 35mm.
If I need anything longer than 35mm, a good tele zoom has always been a better tool than juggling tele primes.
14mm - 23mm - 35mm for me.
Or 16mm instead of 14mm.
This distribution is the most equal.