I’d say if you like the designs buy them all regardless of the size.

You can’t really loose, there fun to transform and you could displayed characters in both modes and some will also pair up nicely for mini displays/battles.

The vehicle designs are stylized and interesting so having 2 versions of core characters doesn’t seen to be a problem with me. I already have 2 versions of Earth prime and Cybertron Megatron (voyager and deluxe) and like them all.

Voyger prime is great with the other Autobots and seems like he will display well with leader Megatron. His robot mode also looks good with either or both deluxe cabs. Cybertron prime is also a good partner to Voyager Megatron, so that’s lots of options/fun already.

Leader bulkheads size seems to fit better with the other Autobots but the Voyager is nice in both modes and could be a partner to Lugnut or use to display him in both modes.

I can’t wait for leader bulkhead and Megatron and activators bumblebee.