Is it better to be Catholic or get a divorce?

I'm not sure that I understand this question, because they're not mutually exclusive. The Bible says that anyone who divorces and remarries commits adultery, and so one can't be a fully practicing Catholic if one has divorced and remarried without receiving a declaration of nullity from the church. But the simple act of getting a divorce, while discouraged, isn't a bar to practicing Catholism--to oversimplify a bit, it's simply disregarded. A civil divorce doesn't impact your obligations based on the vows you took before God, so in the eyes of the church, you're still married.