I don;t see how you could go wrong with either. The Note with the S Pen would give it s slight edge. It would be like a better one of what you have now.
The beauty of the note 8 (I have the 10.1) is its additional functionality beyond standard Android tablets. I'm not saying it is better (I kind of am but I'm just that way, forgive me) or for everyone but if you have and appreciate the Galaxy Note 2 like I do the Note tablets are almost mandatory. Crazy for your phone to do so much more than your tablet.