Re: TOS' U.S.S. Valiant and Farragut....
The name was used twice in TOS - in 'Where No Man...' and 'A Taste of Armaggedon'. There's nothing wrong with that since the later could have been named after the former - separated by ~150 years.
"I've always said you can get more with a kind word and a two-by-four than you can with just a kind word." - Marcus Cole, Babylon 5