Which is in the best position

You didn't put up support.

It all comes down to personal preference and play style there isn't a which is the best option route as what ever you are good with you should be able to carry with. If you go take a look at the challenger Tier you will see all sorts of people made it that high in various roles that suited their play style.

Everything is literally so fucking snowbally and 1 shot that I really can't say bro. You would have to confine it down to specific champions

Tanks being the strongest and assasins currently the weakest imo. Adc and apc floating around in between