If you are eligible for both, the CEC is generally faster. However, you have not provided any info suggesting you would be eligible for either.
It is very difficult for a person with a 1 year PGWP to work for a full year in a skilled occupation. Even if you did, you would need to find a way to get a new work permit to be able to stay in Canada and continue working while you prepare a PR application. (Of course, you can leave and apply from your home country too).