I've heard a lot of players complaining that the card size in GCCG doesn't leave enough room for large fellowships. As I rarely run large fellowships (too used to
Shotgun Enquea...

) it doesn't affect me too much. However, here's what I have noticed with testing:
At the current size, you can squeeze in 9 companions without overlapping on the sites IF none are bearing any cards and they are right next to each other.
At 80% of the current size, you can fit 9 companions plus have space to have each one bearing a card (or, 9 cards borne total) without any space issues.
80% of the current size is the same size represented by your decks. Too see what it would look like, you can simply put a companion in your dead/discard pile and compare that to your other companions (you can drag and move your decks just like any other card).
If you play GCCG at all, please vote
and leave a comment as well. Size is fine, or smaller is better? Thanks!