Both are the decent & same level colleges for Engineering programme. As per the analyzing report of Careers360 Amrita School of Engineering, Coimbatore has AAAA+ rating which means Outstanding. The rating is based on the research of the colleges on various parameter on placement, Faculty etc. You can check the placement of the colleges with the given below links.

https://www.amrita.edu/school/engineering/placement

http://www.dsce.edu.in/placements

You can also check the genuine reviews of the colleges with the given below links.

https://engineering.careers360.com/colleges/amrita-school-of-engineering-coimbatore

https://engineering.careers360.com/colleges/dayananda-sagar-university-bangalore/review

Good Luck!