Leigh advantages:
24" capacity infinitley variable spacingAkeda advantages: Router supported both sides Dust collection Set up time
I obviously like each as I own them.
It's a matter of choice: Dozuki or Dovetail or gents saw. (my $25 dozuki gets almost all my dovetail duties, however, my Adria dovetail saw looks REALLY nice). Vanilla or Chocolate?
Check out your options, look at whats available, talk to people that own one or both.
In all honesty the best dovetail machine is Frank Klaus. Whatch his video, he is an animal.