Agreed, both have their strengths and weaknesses. Scott has big issues at times with preventing discord or discourse. Schism happened under his watch. He's not everyone's cup of tea as a leader. That said he has a strategic mind and the type that loves planning for conflict. He's good under pressure and can make hard choices.
Storm is much more charismatic, even villains love her. She inspires those around her to do better while also steeling herself in difficult situations. On the other-hand sometimes she bites off more than she can chew and takes on more responsibility than she can give attention to. (e.g. Morlocks, Arrakko, Krakoa)