I agree - we'll have to agree to disagree. While both are awful ways to end a life, I think the events of the crucifixion are worse (including beating, being flayed alive until your ribs show through the flesh, having thorns stuck in your head, taken on a forced march carrying somthing that weighed at least 50lbs, having nailed driven through you, propped up in the heat of the sun while crowds jeer and gape at your naked and beaten body in full daylight, before eventual demise; all the while knowing that you are innocent but will certainly die with no hope of reprieve). Have you see the "Bashing Passion of the Christ"?
I wouldn't like either of them, but I've stated my case. What's yours?