Quick Pick vs Choosing Your Own Lottery Numbers
Quick Pick changes how numbers are selected, not the probability that a valid combination will be drawn.
Mathematical equality
Assuming each valid combination can be drawn fairly, a Quick Pick combination and a manually chosen combination have the same probability of being selected.
Why people still prefer one method
Some players value convenience; others enjoy choosing dates or favourite numbers. That is a preference, not an edge.
One practical difference
Human-chosen numbers may cluster around familiar ranges such as calendar dates. That can affect how often a winning combination might be shared with other players, but it does not make the combination more or less likely to be drawn.
Keep the decision simple
Choose the method you enjoy and keep spending within a predetermined entertainment budget.