Difference betwen cc70 odette and AW90 odette is actually 116 damage ,but id still awaken her because shes still a very powerful mage.
Noel is another option for the fact that her AW passives increase gold gained.
Aria is a general buffer with 2% to all units. Decent buff if you use aria a lot.
Monica improves dc droprate , so its a good unit to use for farming
Meanwhile .....if you want massive improvement in stats , go with solano. She gains 299 damage , 10 range , and her passive increases her attack speed. A good AW for a unit that i personally used a lot , but not really a priority
Other then that ...dunno. I'd awaken some duelists (imelia/anya for being super tanks for hard bosses) and even stuff like conrad can be usefull if you have many barbarians (he buffs all barabrian daamge by 5% with his aw passive)