These are the ratings for DEI :

Academics : 6

Fees : 7

Placements : 7

Infrastructure : 7

Social Life : 5

And these for St John :

Academics : 6.5

Fees : 6.7

Placements : 5

Infrastructure : 7.2

Social Life : 7.5

DEI seems relatively better. You must take other factors into consideration, as you want to prepare for other things, as well.

Hope it helps.

Good luck!