In the current PvE, Hulk is the featured 3*, meaning that when maxed out his level is boosted to 260. Other featured 3*s are boosted as high as 240. But Hulk’s attack power after boosts is 
85 / 
76 / 
66. And Luke Cage’s power after boosts, 20 levels under Hulk, is… 
85 /
76 /
66. Hulk should tank both red and black over Cage when they’re in a team together, regardless of position, but instead they tie.
What’s going on?
There’s probably a cap or a really harsh step-down once you get to a certain level. It’s definitely not linear.
Make sure hulk is in the center, and Cage is to the far right. This should let Hulk tank them. In the case of a tie, position is next in line. Center is 1st, Left is 2nd, Right is 3rd.
Hope this helps!
Yeah, I know how to break the tie, but there shouldn’t be a tie between characters of the same tier with a 20-level difference. Otherwise what’s the point of the featured boost being different from the weekly boost?