I like going with a Capt. Marvel/SR/Cpt America team for WB, good +30% damage, and nice team bonuses. Not that SR needs it, she face tanks any WB and beats them in around 1:10.
I put a Hawkeye set on my T2 Elsa replacing her Stark set(too defensive) and have been getting great results, she now does really good damage and is still very survivable, she was like 10 seconds slower on killing Corvus than SR without ever having to switch or her getting in danger of dying. I'd say she's better than T2 Silk for WB. Also, she's probably the most fun character to play with.
Edit: someone help me pick my T2 target, I already have T2'd: Silk, Songbird, SR, and Elsa(2 Blast, 2 Speed), my potential T2 targets are: Gwenpool, Iron Fist, Wasp, Black Widow. I already have 150 bios for Black Widow so I'm saving hers for doing it myself, I could also potentially do this for Iron Fist. I think Iron Fist is the best option since I don't have any Combat T2s yet.