If I was to rank them based on how much I enjoy their solo output over the years, it would be:
Gabriel
Hackett
Phillips
Banks
Collins
Rutherford
But to be honest, my level of interest in their continuing solo output has waned, except for maybe Ant Phillips.
Hackett seems to have landed in a decade-long rut; Gabriel hasn’t released anything I liked since Up; Banks' current preoccupation with classical has zero appeal to me; the last Collins' album I liked was released in '89, and for me Rutherford's brilliance as a solo artist began and ended with Smallcreep's Day.