So I was thinking about this earlier while looking at the Eidolon Evolutions. Sure, optimising it might get you far depending on what you do, but what's the fun in that? Instead, I noticed a few things.
You could easily make your own personal Zilla, and watch it grow :D
Think about that for a moment. Your own personal Godzilla.
Everything you need is in the evolutions. Now, granted, you have to give up a few things :\ For absolutely everything Zilla needs, you need about 30+ evolution points. We don't get that, so for Zilla to get big and strong, he's going to have to be a bit different.
Do you want your Zilla to be huge? Do you want your Zilla to have the good old Atomic Breath (Green Fire)?
Most of what he needs are actually in the 1 point evolutions. Climbing, swimming, having a tail, slamming, tail slaps. Zilla's not much for his claws. They're more for climbing. He needs a nasty bite. Improved Damage (Bite) and get him a second bite to bring out that extra damage. I mean, he's Zilla, he's got one hell of a set of jaws.
Use the Biped base. Zilla walks on two legs most of the time, using his tail to balance him out.
But think about it! Your own personal Zilla! How can you not?
