Im pretty sure that the Asus vivobook 14 is i3 instead of i7 but if you found a vivo book 14 with i7
I would go for the Asus since i7 is really helpful compared to i5
since the Dell only has 128 ssd that would be off the list
now, comparing that Lenovo and Asus
i7 is better than i5 so i suggest...