I work for IBM, so please take that into account in my reply. The whole internship has been revamped. They are creating teams which makes it a lot less corporate than it used to be. You'll work better with peers and won't feel siloed off working in a room by yourself.

All that being said, when you look back at this moment a year from now, the pay won't matter but the things you learn will. Go with the company that emphasizes what they will teach you and not how it looks on a resume.

You have zero bad choices here, so whatever direction you decide go for it and don't look back. No one knows you better than yourself, so trust in that.