UK : Time to switch gas & electricity supplier again

Current suppliers
Electricity : Npower sign online 20 (direct debit)

Which Utility Supplier now ?

Gas : Ebico equigas

Apparently Npower are ending 'sign online 20' this month, so it's time to look around the utility comparison sites again. It looks like I can't beat them for electricity. All the new supplies are dearer but the Npower 'sign online 24' seems the least more expensive. Have to take a monthly direct debit, unfortunately (DDs are evil).

For Gas, I can beat Ebico by about 15%, though I have always liked them (pay cash etc). Probably Npower are the cheapest again (direct debit).

Haven't decided yet.