Both the colleges are good but as per Careers360 rating, Delhi University has got AAAA+ which says this is an outstanding choice to pursue the degree program whereas if you talk about AMU then it has got AAAA which says this is also very good but not better than DU. Also, as per my personal opinion I would say better to make DU your primary choice if it does not work for you then you can go for AMU.

To check more about the same, you can go through the below link-

https://university.careers360.com/colleges/university-of-delhi-delhi

https://university.careers360.com/colleges/aligarh-muslim-university-aligarh

Good Luck!!!