Chloe (Romeo's Massage, 2013 - 2014)
Yuri (Angel Town, 2013 - 2014)
Judy (Juliet's Massage, 2015)
Vladlena (Private, 2016)
T (Diamonds Club, 2016)
Kiara (Stiletto, 2017)
Kay (5*, 2017)

If I could go back in time and pick one, either Yuri or Vladlena. Too close to call.