First... Alf, that was bad
How many actually got it?
Then if you're only looking at the Entrprise being from WW2 you're not looking deep enough into the history of the US Navy and why THAT Entrprise was named. :
Two ships of the Continental Navy were named Enterprise:
USS Enterprise (1775) armed sloop (18 May 1775 – 7 July 1777), the first American ship to bear the name served on Lake Champlain
Enterprise (1776) schooner (20 December 1776 – February 1777), the second American ship to bear this name served on Chesapeake Bay during the Revolutionary War.
United States NavySix ships of the United States Navy have been named Enterprise:
USS Enterprise (1799) 12-gun schooner / 14-gun brig (17 December 1799 – 9 July 1823), the third ship to bear this name, was built as schooner, and later rerigged as a brig. She fired the first shots in the First Barbary War against the Tripolitanian ship Tripoli http://en.wikipedia.org/wiki/USS_EnterpriseAlso note that Carriers are no longer named for famous battles or ships, only people with strong Navy ties. The famous ships are now Littoral ships or Amphibs (Independence, Essex, Wasp, and America for example)
Now following the current naming convention, Kennedy or even Nixon (although not likely) would be possible.
Nixon was in fact a Naval Officer in WW2 primarily logistics and Bureau of Aeronautics.
As for the reactors, as long as we don't do what the Russians do, Just dump the rotting hulks in a deep hole and let the reactors decay away.