I am about to apply for U.S. naturalization and qualify for two of the eligibility criteria, namely, both :
"I am at least 18 years of age and have been a lawful permanent resident of the United States for at least 5 years."
"I am at least 18 years of age and have been a lawful permanent resident of the United States for at least 3 years. In addition, I have been married to and living with a U.S. citizen spouse for the last 3 years, and my spouse has been a U.S. citizen for the last 3 years at the time I filed my Form N-400."
Are there any indications that filling under either of these eligibility criteria is easier, smoother, or faster?
My guess is 5-year eligibility would save the submission and verification time of marriage documents and could be better. Unless for some reason applications based on marriage process faster on average?
Can anyone --- maybe experienced immigration lawyers ? --- provide any evidence one way or another?