It really depends what you want in a player and how you want to set up. There's more than a hint of recency bias with Martial, he's had a strong season but has for some time been viewed as a frustrating player. Lukaku's record speaks for itself and his record at International level is outstanding too. Play to his strengths and he is a very potent player. He's hit 25+ in four of the past five seasons. Martial hasn't reached that this year, in his best goalscoring season.
Horses for courses.
Horses for courses.