The one that always got me was: If God gives man free will, then God is no longer sovereign.
Really? When I delegate decision-making authority to my employees, I do not cease to be sovereign (just ask them!). The Calvinist god must be weak indeed if he can’t give his creatures free will without losing his sovereignty.
Probably there can never be an utterly free will; but there can be free moral agents capable of choosing, in accordance with their attitude, among a range of things.
I think it is possible to get so hung up over fate or predestination or “absolute sovereignty” that we find ourselves frozen into a fatalistic idea that we are “God’s puppet show.”
God also allows men the free will to do stupid things so that his judgements might be just and, as often as not, the stupid manner in which men exercise their free will also results in more punishment than God would dish out.
Just look at what happens when leftists continue to get their way.