1) Total depravity: It's not true. If salvation comes by grace through faith, I can choose to believe. Hel, I chose to believe in Asatru! I could choose to believe in Calvinism out of my own free will.
Arguing that then I'd be chosen all along sounds like pretzel logic to me.
2) Unconditional Election: If I don't believe I can't be elect for salvation. Something is unconditional only if it's free as in beer

.
3) Limited Atonement: It's like saying Jesus paid the full tab, but the bar owner only accept that payment in behalf of some.
Plus, nothing can be sufficient without being efficient.
In that case, he died for the sins of man, for all sin, but it only works for some?
4) Irresistible Grace. Free will anyone?
5) Perseverance of the Saints: It's an ex-post facto. I can only be a saint if I persevered, and it won't be known until the end. You can set it by definition, but it proves or advances no reasoning, so it's an unneccessary, void premise.