Sorry for my late reply, busy weekend.
This one:
The maps in Grace's and Hammel's books are much more accurate.The battle was nealy impossible to track, but we do know that the US forces were well into a starboard turn to the North when visual contact was made.
Some of those books are long out of print. The books on the Helena and O'Bannon were published in 44 and 45 and are incredibly hard to find. They are also very inaccurate, due to wartime censors and unverified info.
The Ballard book is great, some new info from a Japanese perspective included. The undersea renderings and charts make it a great buy if you can find it.
Hammel and Grace can still be had at most military book shops. Third Savo was somewhat of a dispapointment as it's is somewhat unorganized and random. The Morrison books are good but somewhat dated and do not benifit from more recent findings on the various battles.