Which is easier to get- a high-interest credit card or a low-interest credit card?

Is it easier to get approved quickly for a credit card that has a high interest rate or low-interest rate? Do credit card companies like to give away high interest rate credit cards to just about any sucker because they like to take their money? I seriously want to know!

Can I transfer a line of credit at a high interest rate to 0% balance transfer card?

I have a line of credit at a bank at about 16% APR. Can I transfer that balance to a credit card to get a lower APR, or even a 0% APR using a balance transfer offer? I have a credit score of 650 (which I have read on the internet is considered [...]