I thought one had an extra layer of enamel, but I have neither, so not sure.

For whichever one you get, I think there is a special enamel cleaner that you can get that is the best stuff to use on them. My Mum has this stuff, no idea what it is (I can find out if you want me to), but it cleans the enamel up like new. Mum has a scavenged pot (think its a creuset?) and it now looks brand new.