No I don't think he is. The quality of The Dark Knight Trilogy (Batman Begins notwithstanding, but I should probably leave that one for the overrated thread) gives the DC fans a good argument, but film for film Marvel is wayyy ahead.
I would dispute that, once you take into account their entire catalogues. There have been something like twice as many big-budget films made of Marvel characters as DC, and a hell of a lot of them are stinkers. Sometimes whole franchises with multiple films (Daredevil/Elektra, Fantastic Four, Ghost Rider).
DC has its own share of duds but I'd argue their hit rate is better - and when they've been done well, they've achieved something that the Marvel films haven't yet come close to. Singer's
Superman, Burton's
Batman, Nolan's
The Dark Knight and Snyder's
Watchmen weren't just smash hits - they're iconic films.
The real question in the next few years is how well DC will do at exploiting their stable, once they start churning out a similar number of movies to Marvel.