I agree. My point in referencing Olson's book is that he sees Arminius (and classic Arminianism) as more biblical than many of today's theologically challenged Arminians. However, contrary to Olsen, I see Wesley as departing from Arminius and today's Semi-Pelagian Arminians as worse than both -- not to mention the Arminian Open Theists (Ughh).Classical Arminianism is represented by Arminius himself.
There are differences of belief among modern Arminians so which modern Arminian do you want to compare with Arminius? Modern Arminians would include the Free Will Baptists, Wesleyans, Pentecostals, Dave Hunt, and the like.
Arminianism has its roots in the Jesuit theology of middle knowledge or scientia media promulgated by Luis de Molina and Suarez. I find it deliciously ironic that much of modern evangelicalism is based on Jesuit middle knowledge!