Galvatron/Rodimus (part II) and Optimus/Megatron ship manifesto

What can I say? I was feeling meta. And a certain person encouraged me. ;) ...just to warn you, this is long and rambly and not structured especially well.

( I meant for this to just be a G/R thing with M/OP showing up solely for contrast's sake, but the M/OP kind of took over. XD )