Service life: 1911
Which one is better? They're equal depending on you personally.
Service life is not what you should be basing your decision on if it's a toss up between the two.
I've found 1911s jam easier if you limp wrist (all guns do, but 1911's are more noticable, I've found). Also, if you don't have big hands, a full-size government 1911 might not be for you.