he4dhuntr,
Honestly, you might not even need all of those books.
The Critical Reasoning and Reading Comprehension portions of the verbal section should be a walk in the park for you, given that you did indeed score in the 99 percentile on the LSAT. However, the Sentence Correction portion might require you to brush on some grammar principles that the GMAC considers as "correct" or "preferable." The best way to tackle this is to grab the
MGMAT Sentence Correction. Moreover, if you expect that SC may be more of a burden, then I suggest that you grab the PowerScore Sentence Correction Bible and begin with that. Reason being is that the bible breaks down important grammar concepts down to the core, as well as being very thorough, well-written, and easy-to-understand.
Now with the Quant portion. As you may already know, there's a unique question type (comprising 1/3 of the quant portion) that troubles many GMAT test-takers: DATA SUFFICIENCY. Because of DS's uniqueness and unfamiliarity, the only way for you to perform well on this section on test day is to practice. Although I've taken and performed well in Calc 1-3, Lin Algebra, Diff Eqns, I still had a tough time getting used to the DS format.
I have all the books that you mentioned and the book I least liked was Kaplan Premier. I skimmed and read like 5 pages of the quant portion and threw it back on the shelf. The strategies and concepts were too basic after I did half the
MGMAT books. However, I did find the Kaplan strategy on RC to be OK.
I would suggest two book lists given your background.
1) 3 OGs, 5
MGMAT Math books,
MGMAT SC (PowerScore Bible as optional)
2) 3 OGs, Jeff Sackmann's Total GMAT Math,
MGMAT SC (Bible as optional)
Note on Jeff Sackmann's. I absolutely love this book. You can do a little research around the forums to see the good reviews for yourself. The only bad thing is that it's a little pricey for a PDF file ($50). I had to take it to my local Kinkos to print and bind a hard copy version but I found it to be a good investment. The content of his book gets straight to the point and is very easy to follow.
One more thing, buy at least ONE
MGMAT book as this will allow you access to access 6
MGMAT CATs, which are arguably the best indicator of your performance next to GMATPrep.
Hope this helps and good luck!