Morrisons is great, which is just as well as it's all I have to choose from :P Yeadon, Guiseley and Horsforth all have a Morrisons...the nearest non-Morrisons supermarket is the ASDA at Holt Park which is two buses away. Guiseley has an M&S Simply Food but it's not a big shop and doesn't always have what I want, that said, the dine in for 2 for £10 deal is really good!

I often find that Morrisons does the most and best offers, as you said. I like the ones in BWS when you can buy really expensive wine that's been reduced by 50% or more :P