I've seen some of the shows mentions. Here are my 2 satoshis.
Dominion: Blah. Trying to watch... but it keeps losing my interest. "Supernatural" does a much better job with the 'supernatural'.
Defiance: Very good show. It peters out at times, but picks up quickly.
The Last Ship: Much better than I thought it would be. Still a bit jingoistic, but, a decent story.
The Strain: This is a good show. It keeps getting deeper & deeper. Once it hits season 2, it will likely be far better than any of the others I've mentioned here. But, it's still in that "season 1 finding its pace" phase.
Falling Skies: It has its moments, and will go through several episodes of "blah" before it picks up again. But, when it picks up, it does extremely well.
If you keep track of movies and TV shows, you'll likely have noticed that they very often come out in pairs where the same basic themes are played out with the same archetypes, but the specifics are changed for different audiences. e.g. The Last Ship & The Strain. Here's how that plays out:
Theme: The godvernment saviour
The Last Ship - Navy
The Strain - CDC
Theme: Medical emergencies!!!
The Last Ship - A lethal virus plague
The Strain - A vampire infectious plague
Archetype: The torn hero who battles against all the same crap as every other infuriatingly trite "hero" character with all the accompanying baggage and idiocy you've come to expect
The Last Ship - CO CDR Tom Chandler
The Strain - Ephraim Goodweather
Archetype: The good guy who has done something really bad & is in need of redemption
The Last Ship - Quincy
The Strain - Jim Kent
etc. etc. etc.
The exact same thing plays out in countless shows and movies that are always released in pairs within a few months of each other, though occasionally you do see these pairs released in successive seasons.