Which 6* champion would better to rank up to level 3

Aleksdovgo

Hi!
I have the following 6* champions: Spiderman 2099, She hulk, Mr. Negative, Modok, Luke Cage and Miles Morales. I have enough resources to rank up one of them to lv3. Who of them would be the best choice?

ZAHIDMALIK1588

Spidy 2099

Aleksdovgo

Thanks a lot! I like him too

13579rebel_

Spidey 2099 is the best option but Don't ever do MODOK he is very bad