Lancelot is the best choice of those at 3/60 to ascend imo, followed by a second BT or Colen. His atk boost is the same as Bolstusks and the mana up can be pretty useful when paired with average or slower heroes.
I have found Sumitomo more useful in PvE than PvP. He gets a run in wars and sometimes when I want to stack heavy on red in raids, but he doesn’t do much for the team and should not be put on def imo. Colen on the other hand can be brutal. And fingers crossed you get Wilbur should you do any more Atlantis summons!
Agree with the above that Lancelot would be first in line, then I’d do Colen for variety before maxing a second BT.
Hmmm. Lots to consider but I already ascended Lancelot! I guess next time I ask for help I’ll wait a little longer before jumping. Thanks much tho’. I now have input before I ascend my next 4* red hero!