I've complained a lot about my co-residents during residency, but some of them were really great. Notably, there was a female resident named Gina that I was working with on a VA clinic rotation who was probably the most considerate and hardworking resident I've ever known. In spite of the fact that she seemed to hate residency.
For example, my daughter was just starting daycare then and I came down with a really bad stomach virus. I came to work looking completely green, throwing up between patients, and nobody sent me home (of course). Anyway, the next morning, I had clinic and Gina didn't, so she called me and preemptively said she was going to cover my clinic, so I could stay home and rest. Isn't that nice?
I tried to do my part by being considerate back to her. An attending noted that he'd never seen two residents work so well together.
Actually, what he really said was that he'd never seen two residents argue over who will see the next patient. Considering many of the patients at the VA pain clinic were kind of unpleasant and neither of us actually wanted to see them, the only reason we argued over this was to be considerate to each other. It was sort of like:
"Oh, I'll see this demented, alcoholic, homeless guy with back and neck pain."
"No, it's okay, I'll see him."
"No, I don't mind, really. You have a lot of dictations to work on."
"No, it's okay, you have epidurals in an hour and I want to make sure you have time to eat."
It's really nice working with someone who is genuinely considerate.