Arminius (whose name has been much-maligned by the Calvinists--and indeed by many so-called "open theology" Arminians who didn't know squat of what the man himself wrote) was more or less a contemporary of Calvin IIRC, so I don't see how one view or the other can claim to be the "traditional" view of the Church on that basis. While teachers and traditions can be good in expanding our knowledge of God's Word, they should always be but a starting point, never the end of our convictions and knowledge.