I think his past regarding the IRA speaks for itself if you look at the facts, and yet people are trying to excuse him from it in some way. Whether he or May would be the better PM I have no idea, but I can't vote for him.
Maybe it's because I'm old enough to remember the bombings and murders, or that I had a secretary from NI, who told me some of the horrors she personally witnessed at the hands of the IRA when she lived there, but I cannot vote for him. If it wasn't Corbyn leading the Labour party, my vote could change.