I think it depends on who you speak to, what day it is and which way the wind is blowing...!

Just make sure you are comparing the rates before all the discounts. I was looking at Dodo because they're discount % was high, but when I looked at their rates, it worked out I would be paying about the same.

You can also convince a provider to give you a bigger discount if you tell them you are looking to change gas AND electricity providers.