What evaluation can be made of the leadership styles Presidents Dwight Eisenhower and John Kennedy had that made them effective?

Both of these Presidents had natural charisma and charm
and a way of making people feel good about themselves.  They seemed to always know what
to say, how to say it, and when to say it.  They were both ex-military men and heroes of
World War II and in their day, military men were special and were shown a lot of respect
and influence. 

Eisenhower is ranked among the top ten best
presidents because his term was generally peaceful, prosperous, and because he fought
"communism, Korea, and corruption."   Quoted from href="http://en.wikipedia.org/wiki/Dwight_D._Eisenhower">http://en.wikipedia.org/wiki/Dwight_D._Eisenhower.   While
in office, he enlarged the Social Security program, ended the Korean War, and
established the Interstate Highway System.  He kept a check on Russia, stepped up our
nuclear weapons armament, and expanded the space program.   He was seen as a gentleman's
gentleman and was soft-spoken, reserved, and refined.  Mamie, his wife, was very
well-liked and popular.

Kennedy, on the other
hand, was flashy, good-looking, and very charming.  He had a way with words and was a
very good public speaker.  He was the first and only Catholic, Irish-American president
and the second youngest President to get elected.  He is also the only President to be
awarded A Pulitzer Prize.  Perhaps he's most famous for his cool-headed negotiations
during the Cuban Missile Crisis.  Also during his administration was the Civil Rights
Movement, the beginnings of the Vietnam War, the establishment of the Peace Corps, and
the emergence of television as an important media.  The country's economy greatly
improved during his adminstration.  Probably his most famous words were issued in his
characteristic drawl, "Ask not what your country can do for you; ask what you
can do for your country." Quoted from href="http://en.wikipedia.org/wiki/John_F._Kennedy">http://en.wikipedia.org/wiki/John_F._Kennedy. 
His wife Jackie was considered to be one of the most well-dressed, sophisticated first
ladies ever to grace the White House! 

In different ways,
both of these Presidents forever changed Washington, D.C., the White House, the
Presidency, and our country during their lifetimes, and left a legacy that has been
unsurpassed by few other Presidents!