My only aversion to plus is it being bigger in size and difficult to carry in a pocket really. What i like about S9 is its shape and off-course, the brand Samsung. About iPhone 8, was determined to FINALLY make the switch to at least try it out, unluckily, visited some gadet comparison sites (three to be accurate), with all of them rating S9 WAY above iPhone 8 (in all departments) and on par with iPhone X (3 points in fav of iPhoneX, 2 where Samsung was deemed better and 2 ties). Although these sites can be really 5hitty most of the times, my ONLY experience of making a decision based on these reviews was when i was looking for a camera and i am more than happy with what i was made to choose based on these reviews. That is one of the reasons i am slightly inclining towards S9. Another typical desi reason is, buying S9 you end up with latest model of Samsung, in case of iPhone 8, you are already one step behind and there will be new launch most probably in 2019
About budget, around 80k 90k, can buy both these in this budget
About use, i work! My time of playing games, installing LOADS of apps or trying to hack into NASA or NSA with my phone are over,
Just need something that looks nice and is presentable as a brand, to carry as an accessory! Both iPhone and Samsung perfectly fit.