This site doesn't have A/TO, so I had to get creative. Batum's Asst% divided by his TO% is 1.206 (= 20.5 / 17.0). Here are all players at the positions of F or F-G (but not G-F, F-C, or C-F, or you'd see a lot more listed who are better than him) who played more than 1000 minutes (or you'd see a lot more listed who are better than him) who exceeded Batum in Asst% to TO% ratio. Note that of the 18 forwards with a better Asst%/TO% ratio than Batum, Batum is by far the worst in TO%.
http://bkref.com/tiny/9f1FC
Again...Did you just make it up (that he ranks #1 by a mile in A/TO among SFs)? What is your source?