Wich is better top lane

Dude pls pick in the meta, and also LEARN to spell

both are a poor choice, but i guess this is how i see it.

kha zix will be your glasscannon top and have a early advantage because of isolation passive, you don't get a few kills by mid game then your deadweight

rek'sai will be a mobile tank, easy to set up a gank but really just a one trick pony, and if your against someone who can keep a distance like gnar then your dead weight.

both these guys are much better in the jungle but if you insist on playing them, play them in teambuilder so people don't get mad when you pick some off meta roles

I'm gonna have to say Reksai, partly because kha is an assasin aand they dont do so well top lane, but a more detaled review would be how much more cc reksai has as well as initiation and although she isnt quite as mobile shes still pretty good