Both are on average college in term of placement & faculty. but in the comparision of both Rawal institute of engineering is good for B.tech. The companies visit to  Aravali College of Engineering and Management like GENPACT, Wipro, Accenture & the average package is approximately 3 Lakh Per annum.

The comanies visit to Rawal institute of engineering and technologylike Bank of America, Honeywell, Avantha. The average package is around 4 Lakh per annum.

For the genuine reviews of the colleges you can go through with given below links.

Rawal institute of engineering and technology

Aravali College of Engineering and Management, Faridabad