Personally, a new frontier sounds better than open the frontier. The phrases do not mean the same thing, so it is really hard to compare which one really sounds better.
The New Frontier.
. . . New Frontier.
New Frontier was the name attached to Kennedy's domestic package. The name came from a phrase in Kennedy 1960 nomination acceptance speech in which he said that America was standing on the verge of a new frontier.
The New Frontier.
New Frontier Bank ended in 2009.
New Frontier Bank was created in 1998.
New Jersey Frontier Guard was created in 1755.
The New Frontier - album - was created on 1993-10-19.
There is no "frontier " country. Usually a frontier is an unsettled area that is part of a country.
the new frontier
where waew yrk frontier in1788
They both work happy new year just sounds better