Mourinho has worked with Lukaku and Morata before, and Morata is his prefered choice than Lukaku, surely that means something.
Morata has experience playing in more than one league, and comes out as a winner in both leagues he was playing at. He has tons of CL experiences compared with Lukaku's almost zero CL experience. Think Morata will help us a lot in the league and especially in CL next season. Lukaku's advantage is that he know PL better, but he just moved to a new team, so you will never know what will happen with the massive pressure and stuff there.
We have just won the league. Our aim next season will be PL and CL titles, not with a main target 'to finish in better position at the league next season'. So still thinking Morata is the better bet this time. Whatever it was 'but, but we have failed to sign Lukaku' behind, sound like a blessing in disguise for me now that we got Morata.