In the end, Seven is dominating them. An argument in any other direction is plain ignorance of their strong first quarter.
Well those year to date figures include Seven's monster MKR which ran 5 nights a week for 3 months.
Those year to date figurers however do not include Nine's Voice or Ten's MasterChef. So to be fair, let's compare again in 4 months when all three nets have each aired their monster hits.