Make Lightning a medic, throw on some potions after Odin's first couple of attacks(I could never get Cures off fast enough to heal either me or Hope in time), then heal Hope until you see the prompt to press square.
<Obvious Troll> is Obvious! - Gamefaqs Troll Raid 2010(Gfaqsraid) I love Vanille!http://www.creativeuncut.com/gallery-09/art/ff13-oerba-dia-vanille.jpg
make a war& peace paradigm which allows lightning to attack odin while hope heals... but have hope cast protect on shell on both your party members first. when he puts his shield up (sideways)to defend like position. switch to a dual casting and fire magic at him which gets his chain guage up quick.. when he goes to attack again switch back to war and peace to heal and such. may need to use a couple pheonix downs. and shell and protect a couple times.. but its a repeat process. just when his shield is up make sure you dual cast :).
Start with the Symbiosis paradigm (Lightning a Medic and Hope a synergist). After Hope cast Protect and Shell on you both, switch to War & Peace, and keep having Lightning attack. Then when Odin puts up his shield, switch to Doublecaster? (both Ravagers) and spam magic; this will increase the gauge a lot. Then when his shield comes back down, go back to War & Peace, then 2xRavager when shield is back up, rinse and repeat. This method is pretty fast.
Bring back to pre-patch Model 1887s; nobody complained about Commando until these were taken out. Maybe they helped counter Commando? O.o