I have this dilemma between 17-55 & 24-70/24-105.
On a crop 1.6X, no intention to move FF yet
I have studied tons of photos between the two sects and my conclusion is that 17-55 has best focal range for crop and sharpnest but lacks the 'omp' in colour rendition and tone.
24-70 on the other hand is heavy and lacks the wide focal range & IS
24-105 IS seems to solve the problem of lighter lens and longer zoom but IQ slightly falls back against 24-70
But both will need another 17-40mm lens to supplement the wider range
Errr after writing this, I seems to give myself an answer to my dilemma

17-40 +24-105 + 70-200, only thing is 3 lens instead of just two - cost issue

again