Story rec
One of my biggest narrative kinks in Avengers fic is stories centering on Bruce reconciling with the Hulk, and Irreconcilable Differences does so in 130,000 words of angsty goodness. A mutant manages to split Hulk and Bruce into two separate people, and they finally come to terms with each other. This has a wonderful Hulk perspective, terrific team bonding, and a nice Tony/Bruce romance as well. I warn you, though, if this is your cup of tea it is extremely hard to put down; I think I had plans to do other things than read for six hours this afternoon!