I currently support all players under 25 - when they don't play Hewitt or Federer. Will continue to support anyone from the next generation out of desperation.
They are way too proud to support anyone else. Expect them to say "Peak Fed would destroy this current slam winner, or no. 1 etc" or something like that non-stop.
Sad thing it might be trueBetter still in 15 or so years time they will be saying, even at 50 Federer would still beat whoever that current no 1 player in the world is.