I rather like Grace!!
She lies, sure - like Heyes.
She is larcenous - you see where this might go...
She is self centred - ahem
She is clever and plans ahead - and spots chances to make money - ahem
She breaks Kid out when she doesn't have to ... so, she is selfish, (aren't we all!) but not heartless
She takes being beaten with a good grace (pun!) I think she displays the 'Grudges are for folks with bad stomachs' stance.
The other gal I like is Leslie in The Root of it All... same kind of reasons
Alice in 'The legacy...;
Now, Alice and Grace have both starred in Calico VS episodes...But Leslie never has. Hmm. Engages brain. (Spots cup of tea, disengages brain!!)