IIT Roorkee ECE is obviously much better than IIT BHU CSE, on most of the aspects be it Infrastructure, Outlook, Faculty and Research Facilities. As far as IITR is concerned you should not have any doubt regarding the Placement Prospects. IITR blooms with career prospects and opportunities with some of the major core companies for ECE include Intel, Applied Materials, Microsoft, Google, Texas Instruments, Nvidia, Samsung ,etc. Even if you are dead interested in CSE, you always get 2 chances at IITR to change your branch, which is unlike in other top 8 IITs. So decide wisely.

For more information and college prediction do follow the link below

https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer