(Click to biggify.)
On a standard Monopoly board, New York Avenue sits right next to Free Parking. Coincidence?
On an unrelated note, the orange set is probably the best set in the game. It strikes a perfect balance between affordability and soul-crushing rent rates. The purple set (St. Charles Place & co.) is second on my list. Together, they can lock down the only escape from jail ;)
Orange is also my favourite, but never underestimate the light blue properties, a mistake of many. Also railways are key.
Light blue is also excellent, but for some reason, I almost never land on Vermont. Weird.