Full_Atomic

Of the 3 lists you've got, I like the first. 
Because everything is so fast... you can quickly flank virtually anyone at any point of the game. Sniping to help dictate where the enemy moves to is fun, or pin them behind LOS blocking terrain because they are too afraid to step out..... at which point it's too late. 

There's gotta be a way to incorporate Mecha Porkchop with these lists (sparks loves him and his scrap markers), not because he's unbelievable or anything... I just think he looks awesome. 

Honestly a staple for me is....

Earl, Sparks, Rami + anything you'd love to make fast.

Your model count for a gremlin list seems relatively low, however, they are pretty hard hitting (which I'm not used to as a Gremlin player). I personally try to out activate my opponent. 

Also... I too want to see whiskey golem be.... "extra" fast.

He can potentially have some decent range with (possibly) free upgrades depending on what Zipp gets as his upgrades. 

Sky Pirates are cool like that.

True. Trixie can help pump out some serious damage when paired with a strong Ml partner.... but where's the versatility in that? I love first mate, hilarious model, nifty rules. Trixie has her perks but I'm leaning towards F.M now. 

I would like to see how zipp, sparks and Whiskey Golem do. 
W.Golem can buff himself to +2 def for 1 ap a turn. He has nimble so he can be fairly fast if needed. Buffing W.Golem any more is just fun. He could be very durable, a large model to hide your models behind... so just throw him at whatever you want tarpitted or dead... I mean his Ml isn't terrible.

Just do a cool tuxedo color. Somer has some really cool patch work and, if emphasized, can really help make the model POP!
Do whatever it is you think is cool and your collection will stand for itself. 

I think sparks would be pretty fun with Whiskey Golem.
Giving an already nimble model Fast would be absurd to get him across the field. Would really help free up an AP to boost his defense.

Just my thoughts.

Here are some of the models I have. 
Somer I decided to change it up and give him a powder blue suit. Why? Because I would totally wear one being as awesome as he is. 

What kind of *white paste* is that? I can see that being much easier to apply than sand + flock (which gives me a headache with gluing and painting)

Table looks awesome.