The team has too much versatility for WW to hope to win. Namor can match her in strength in aerial combat for a while; thing and she hulk can throw what ever they find at her, thunder clap etc.; and all while human torch, ms. marvel, and IW attack her with a barrage of energy atacks.
Dianas biggest advantage in this fight would be her speed. She could theoretically speed blitz them but seeing as how she has no knowledge on them she wouldnt know who to go for first. If she doesnt attack IW first she has an opportunity to put up her shields etc. So I think her speed would be nullified.
I give the team 9/10.