NIT AP would be a better choice in my opinion as first of all it is an nit so it has its own benifits also it has been mentored by nit warangal so a tinch of its legacy has penetrated in the culture of nit ap and you already know that nit warangal is a great institution also in 1st year at nit ap you are taught subjects from all domain so that has an advantage in itself as you have knowldge about other domains other than your own branch whereas in iiitsricity only cse related subjects are taught nit ap is my recommendation but yes since you have such good percentile I would suggest you to go with other nits that are older although you may get ece branch there yet they will be far better than all other new nits rest the final decision is yours.