[quote=@Gowi]
I don't even know if Liz has an opinion on Will at all.
[/quote]

She'll have shared Transfiguration, Potions and DatDA with Will at NEWT level, as well as informal healing classes with /unnamed matron X/, so they'll definitely be on each other's radar. Will would probably respect Liz and be completely immune to any of her subtle attempts to be sarcastic/wise at him.