Liwus [#6]
You dont really need to rotate quickly for retakes, unless you "flood" which is kinda "retaking before the plant". And while Yoru probably is slightly better at retake utility, I think the Jett mobility/ability to get up in boxes makes up for it. Personally, I wouldn't go for either Jett or Yoru. Would rather have my "duelist" play Omen or Clove.
I agree with omen being good on icebox, maybe not clove so much (although I do like seeing teams experiment). I feel like yoru is much better than jett, you have to play a little bit differently because they have slightly different play styles but I think overall yoru would be better on most maps. Not every team comp will be the most optimal but its just a bit boring seeing jett played on most maps when yoru seems better theoretically. I wanna see some variety.