Which 6 star would you bring to R2?

I also have them at 5 star r4.

Comments

Ultron has been outstanding for me as a R3 so he is easily my top choice from your list

Ultron has been outstanding for me as a R3 so he is easily my top choice from your list

Even unduped?

Ultron has been outstanding for me as a R3 so he is easily my top choice from your list
Even unduped?

Dupe no necessary at all

Ultron and KM, both worthy.