Butterfly or WM for me:

--------ST----------|-----------ST----------
AML----------AMR---|--AML-------------AMR
----MC----MC-------|------MC------MC-----
DML----------DMR---|------DMC----DMC-----
----DC-DC-DC-------|--DL-------DC-------DR

One ST and wide AMs will be less marked when facing this formation, all three of your attacking players will only be double marked.