Ive got a beddy/whip x collie/whip/grey and she does very well indeed, for me anyway, and works well with the spaniel in the cover flushing for her, good in the day aswell but gets abit bored if there's no constant action, but miles better on the lamp.
You don't come across these crosses very often, but crackers if you get a pup from working parents, especially 2nd cross on the sire/dam side ive found. I waited ages for one.
The beddy just gives her a bit of fire, and as been said, the collie gives a touch of brain.
Good cross i've found anyway