which ever is cheapist when i send our lass to the super market usually pick it up at a quid for 3 tins.
if i go i ask if i can have it cheaper cos one of the cans will have a dint in it and they usually knock a few pence off.
Asda Smartprice cuz its cheap and its what my mum gets. If you don't think its seewt enough or think the fish prefer it sweeter just add some sugar and maybe some salt because it adds to its attraction.
whatevers on special offer, unless i'm going to eat it then green giant[:T] the cheap frozen stuff with a cup of molasses mixed in a bucket and left overnight for feeding and a few grains of giant maze for the hookbait, roll on june 16th and the bream / tench 
Supermarket own brand for the normal corn as it tends to be firmer although its not as tastey so a flavour additive doesn't go a miss. I have bought strawberry corn from the tackle box (not sure on the make) i know the corn is very red and when it works its unbeatable.