I'd have taken Lukaku over him though probably not for the price tag. If the question was who would I rather regardless of money then yeah, I'd probably say Lukaku.
I thought we should have signed somebody like Aubameyang. I know he wouldn't be cheap but we've been without a world class striker for too many years now, the end is nigh with Sanchez and when it wasn't nigh, Wenger didn't want to continue playing him at CF anyway!