Target date or lifestyle funds have quite different glide paths depending on the company. The glide path is how the fund moves from a 80-90% stock portion when there are still 20+ years to go to a much less aggressive stock position as the target date is reached.
As stated in a Journal of Financial Planning article by Bodie, Fullmer and Treussard (March 2010), "...some glide paths seek only to manage TO the target date, while others go further - to manage THROUGH the target date, presumably for the rest of the investor's life..."
The stock portion of the target date fund could be in a range from 25% or less to as much as 70% or more by the time the target date arrives. The answer to which is better is impossible to answer as it depends on the individual's level of risk, income needs and other factors.
The important thing is to know how your target date or lifestyle fund is moving from aggressive to less aggressive. They mostly do but some studies have even shown that this general glide path direction may not be the right answer anyway.