Crusher Stampede : namesake detachment or another ?

Hi friends,

I want to play big bulky monsters about 10 times more than I want to play swarms.

And the feeling is tenfold when it comes to painting.

I'm a total noob ( still in the work of painting my army for my first battle, currently painting Malcom, the maleceptor ) , and looked a bit at the crusher stampede detachment and the reviews of it. It does not seem very popular. I like the " pass trough stuff "stratagem that sound both very good gameplay wise and on point lorewise.

but appart from that...

Would you advise to just play my big monsters with the invasion fleet rules ? or synaptic nexus maybe ?

Eventually i'll probably try all 3 to see how they go, but what do you think i should try for my first big monster mash game ?

Thank you in advance for your insight.