I’m personally a fan of the Double Zeta and Gundam Unicorn time periods of the UC timeline because of the mobile suit designs. You finally get transformable grunt suits and some really cool ship designs like the refit Nahel Argama, Rewloola, and Musaka classes.

I already have several ship designs from the period modeled and textured:
Nahel Argama
Nahel Argama Kai
Salamis (modified custom design)
Clop (standard)
Clop (Reinforce-type)
Clop (White Ark-type)

Plus I think being able to fly the MSN-008 ZII or the RGZ-95 ReZel would be awesome since they could be set up to transform when using their cruise engines 😄