Bodhi... You pull out the clicker and she's goes insane. Any treat will do. She gets massive eyes, dilated pupils and reams through everything at 10000 miles per hour for whatever scrap you have to hand.
Informal training, outdoors, she is solidly a toy girl though. She's totally uninterested in food treats outdoors.
Fred.... Isn't all that fussy, buy is more fussy than Bodhi. He likes his smelly cheap biscuits. But anything smelly he likes. He likes hot dogs, but probably prefers cheese. He likes chicken. He's sort of ok with most stuff, but you need to reward him with something, or he isn't playing
he's not like Bodhi. He only does stuff when there's something in it for him.