Um, non-dancer's very ignorant question, just looking for reassurance really, but is Jay's song a jive? Aren't a twist and a jive quite different? As someone with no ear for these things at all.
I think Peter and Kellie have got the best choices, thinking of songs and memorable costumes - even if their dancing isn't perfect, people will love the costumes. Jeremy's and Daniel's should also keep them in. Not sure about Jay or Helen yet - might be great, they might not be confident enough yet. Anita should be safe and I think Georgia will be as well though I think it's a bit boring to have given her a Bond theme.
I think Anthony and Jamelia have got the most forgettable songs, possibly Carol as well. Anthony's really got his work cut out with a one-armed paso, let alone to a pretty cliche song - hopefully his lovely personality will get him enough votes to keep him in a bit longer. And Jamelia needs to have a word with someone back stage (perhaps she needs to be the diva she's claimed to be a bit more) because her song choices aren't giving her a chance.