Quote Originally Posted by RaideDuku View Post
I'd do Alexander instead of Odin. Alexander appears (briefly, in post credits) in the MSQ. You never have to face Odin. Baha Blast and Mega Ultra Chicken blasted their aether all over Eorzea which is why you can summon them. Just can say the same for Alex when he was summoned. Odin is just a lame sword made by a better primal.
I don't think appearing in MSQ is necessarily a requirement. Solar Bahamut doesn't appear in the MSQ and neither does Phoenix. Odin is a really iconic Final Fantasy summon and using him as the combo finisher leaves Alexander as an option for a really cinematic LB3.