Just listed my whole midfield after RD9.
R Sloane:
Avg at Adelaide Oval: 116.61 from 54 (13/54 below 100, 26/54 120+)
2014: 115.92 from 12
2015: 119.25 from 8
2016: 119.91 from 11
2017: 121.08 from 12
2018: 100.43 from 7
2019: 119.25 from 4
Adelaide Oval Wins: 122.16 from 38 (8/38 below 100, 21/38 120+)
2014: 123.5 from 6
2015: 128 from 6
2016: 117.7 from 10
2017: 129.22 from 10
2018: 115.6 from 5
2019: 107.5 from 2
Wins: 114.96 from 91 (28/91 below 100, 39/91 120+)
2012: 112.06 from 16
2013: 114.9 from 10
2014: 125.82 from 11
2015: 116.82 from 11
2016: 110.94 from 16
2017: 119.33 from 15
2018: 105.71 from 7
2019: 107.2 from 5
Losses: 96.88 from 51 (27/51 below 100, 7/51 120+)
2012: 87 from 5
2013: 99.82 from 11
2014: 103.73 from 11
2015: 80.6 from 5
2016: 101.2 from 5
2017: 98.17 from 6
2018: 83.8 from 5
2019: 116.67 from 3
Sloane amassed his lowest averages in several stat categories (disposals, kicks, marks, disposal efficiency, etc) for the past 6-7 years in 2018.
E Yeo:
Inc 2019 has averaged 24.25 disposals since 2018.
SC avg when disposals equal/exceed 25: 118.38 from 16 (low of 83 and a high of 150, 2/16 below 100, 7/16 120+)
SC avg when disposals below 25: 91.57 from 14 (low of 27 and a high of 120, 9/14 below 100, 1/14 120+)
Wins: 106.75 from 32 (12/32 below 100, 9/32 120+)
2017: 112.09 from 11
2018: 104.06 from 16
2019: 103.6 from 5
Losses: 100.21 from 19 (10/19 below 100, 4/19 120+)
2017: 91.1 from 10
2018: 118 from 6
2019: 95 from 3
2019:
RD1-4: 11 tackles for a sc avg of 88.5.
RD5-8: 33 tackles for a sc avg of 112.25
18 clangers in RD1 and RD2 and 16 clangers since.
Both great selections with the potential to average 110+, around the same price range, possess the same game style (contested) and are not dependent on amassing a large amount of the ball which is a great trait.
Hard to separate both but the key influence on your decision would be your bye structure and if you can afford to carry Sloane through.