Personally, I like both and I've carried both. I currently carry striker fired because well...........it's a Shield.

I do have a stipulation though.......if it's striker fired, it must have a thumb safety.

As for hammer fired pistols......I don't like the DOA type because of long heavy triggers and for the exception of a 1911, I prefer SA/DA types. That way, I can carry with the hammer not cocked but, still be able to fire when the need arises without doing anything extra.