I think it necessary to differentiate between colour reversal and negative. Whilst both require good compositional skills, reversal work demands greater accuracy with exposure control since you are probably missing out on the opportunity to correct at the printing stage. With negative work, or reversal printing, one has to cope with colour fidelity; which I find a bit of a drag. The distraction of colour is obviously removed from monochrome printing, which allows free rein to our creativity; but then I'm biased.