Interesting choices for a CCW weapon - these are both full-sized weapons, and the S&W hasn't been released yet. I guess for carrying purposes the 1911 would be slimmer than the CZ, but at a tradeoff of capacity (I guess the 1911 would have 9 round magazines while the CZ would have 16 rounders).
If I had to choose I'd go with the CZ for reliability purposes.