The test has been done and the results are clear :) :)
I put some Eukanuba and Arden Grange in Sasha's treat ball and left her to it while I went to make a cup of tea.
Came back to lounge and the floor was covered in kibble but Sasha was still rolling the ball and eating so what was going on???
On closer inspection missy was eating the AG and spitting Eukanuba out and continuing to roll the ball for some more AG :) :)
I think I know which one Sasha prefers!

Sasha sounds a very clever dog!

This is such a coincidence because my 3 were on Eukanuba for the past 18 months but changed to AG about 2 months ago.  They seem to go mad for this food and i can tell they prefer it.  I am also pleased because it seems the healthier one and is a bit cheaper (guess we are all watching the pennies at the moment!)

oops...
No idea how I posted this under health section, was meant to go under feeding as nothing to do with health...