Rack 4 stark spidey or rank 3 a duped star lord
I was lucky to pull stark spidey a few days ago and immediately brought him to rank 3. I then did a few hard days of grinding got enough for a basic 5 star and duped my star Lord who is currently sitting at rank 2. I have 5 tech tier 4 cats left. So my question is do I rank 3 star lord and wait for the last 2 to rank 4 him or do I rank 4 spidey and go for the easy path of lol? Just looking for some outside perspective. Thank you for your time and thoughts.