While overall Amber/Emerald wins on more of these categories and could be considered the best Into the Inklands starter deck, we would still give the edge to Ruby/Sapphire and its quite likely that it will be remembered for being the deck with the best staples in it, similar to the Amethyst/Steel deck before it
14 Varina, Lich Queen The Swarm Persists A great option for an Esper Zombie-themed commander, Varina's color access allows you to include the Dimir Zombies of Innistrad and the white Zombies of Amonkhet within a single deck
Aminatou, Veil Piercer is all about amassing a larger and larger advantage as you build up your Enchantments on the battlefield - you need to have ways to discount their casting cost, protect them, and return them to play if met with removal or a mass Enchantment sweeper effect
Red/Whites equipment-heavy archetype combined with the buffs usually afforded by Green spells should make playing to the win condition fairly easy
So this is a perfect implementation of that
What affects the value of Farewell