^^you only listed the incorporated village which is not all of Manhasset. You also forgot Plandome Manor, North/South Strathmore, Strathmore Vanderbilt, and part of North Hills on the incorporated list.
Each area really has their own charm. Its hard to really compare aside from just price without looking at it yourself.
The incorporated and unincorporated is part of "Manhasset". Its not I live in Munsey Park but its not part of Manhasset
fyi, I lived in Manhasset for over 10yrs....I can honestly speculate that a very high % of residents who commute to nyc drive to the LIRR station