I have completed B.Tech Metallurgical Engineering from JNTUH College of Engineering, Hyderabad, this year. I couldn't find thread for materials science so i posted in mechanical

I have a UG aggregate of 71%.
GRE- 301, verbal-141, quant-160, AWA-3.5. I want to retake GRE. expecting 310+
TOEFL yet to take.
10th- 92.7%, 12th-93.4%

2 projects.

I will be working as a graduate trainee in a research org for this year till next fall. Will this be considered as work exp?

My univ choices:

Northwestern University,
University of Florida,
Ohio State University,
North Carolina State University,
Arizona State University,
Texas A&M,
Northeastern university

Please evaluate my profile.