I've got CSE in Goa Engineering College and ECE in NIT Goa. Which seat should I prefer the most?

It is suggested that you choose the institute that is in close proximity to your location, since both the institutes are rather tier-3 Indian Engineering Colleges. 

• The major similarity both Goa Engineering College and NIT Goa share is that fresh graduates often go on to become clerks at several service based companies. 
• They often get an average salary package ranging anywhere between 3 LPA to 4 LPA.

In any case, nobody can apparently have access to the actual placement report of either institute because most of them generally spike their records for unjust purposes. Yet, here is a detailed placement statistics, as is claimed by the institutes in general.

Indian students generally should enroll at colleges near to their residence. And later start to impel the administration to offer basic amenities, if any missing, thereby gradually incrementing the possibility of them obtaining industry relevant skills. Your placements and overall college life has to provide you with the necessary facilities, only then you can grow as an individual.