Whos the best 6* champ unduped to get to rank 2 among these

Is hulkbuster really that strong? Cuz i only have 1 tech champ on my roster. I was wondering if i shud rank up stark spidey for tech. And on ur opinion sym sup or dragon man whos better? I only have 6* r3 doom as the only mystic in my roster so yea ill upgrade them both but who to upgrade first

Gentry2099

Gamora

I really don’t agree with Gamora, i don’t understand how someone would take her to r2?
This is just my opinion. Sorry.

Gentry2099

I would say Dragon Man due to his raw damage.

Jarvisrei

I would say Dragon Man due to his raw damage.

Yea I r2ed him and he's a beast! Really glad that I chose him cuz he carried on 6.2.2 boss lol

Jarvisrei

Gamora
I really don’t agree with Gamora, i don’t understand how someone would take her to r2?
This is just my opinion. Sorry.

Well she is hard and frustrating to use ngl. But if u can play her right and get those heavies in then she can hit more than a 6*r3 herc even though she is just r1. But yea I think herc would be better with suicide masteries on