Peeking in at the metacritic scores for launch titles for both consoles, I'm glad I waited, especially considering the lack of BC (for the time being) on both of them
Forza 5 (82)
Dead Rising (75)
Killzone: Shadow Fall (73)
And a whole lot of cross-gen 3rd-party shovelware (hi, NBA Live 14 [45 for the PS4 version, X1 is not yet rated]).
The highest rated game for either console is a PSN game ported over that's 4 years old (flower).