Which fighter would have been better for the Navy to choose during the early 90's when they were looking for the Tomcat sucessor? My opinion, the Super Tomcat AST21 for sure. More speed range and payload than the Super Bug and cheaper and in the fleet much faster than the -18E/F
Some links about both birds-
http://www.anft.net/f-14/f14-history-f14x.htm
http://www.vectorsite.net/avhorn2.html