Hello moiz ,
Bro i am using dunlop sp sport 215/60/R16
It feels good
Car passes without giving any discomfort on bumpy and bad roads but most of my routes and smooth
I dont know about your side
For max comfort i would suggest you to go for Michelin primacy hp in same size or if you are ok with that tyre arch gap and dont want to change the rims then go for 205/65/R15
2nd preference should be yokohama for sure
Advan db is a really nice n soft tyre
Dunlop is good too but michelin is the best then others
Dunlop should be your last choice
By that i dont mean its bad or really hard or uncomfortable
You asked for the best and michelin is the best
As compared to eurostars even with dunlop you will feel significant difference but i have never used dunlop in 15 so cant really comment
Hope that helps