I wasn't too keen on the Summoner style of battles. I'd much rather encounter visible enemies (as opposed to random) but still be thrown into a turn-based battle screen as before where you can actually use your brain and think about the strategy without being rushed into hack-and-slash stuff. I think Chrono Trigger worked something like this.

Even better would be true turn-based non-ATB like I seem to recall FFX was (with the list showing whose turn it is next)