United Health is the best. They are somewhat evil, in that they offer you a really cheap plan, less then anyone else, but it doesn't cover crap. When you go in, ask them for the best plan available the one that covers everything, and then work yourself down.
I have the best plan, and just recently had to fight it our with them for a claim. They are good if you Pay their higher premium, but at the same time they are EVIL! and will deny your claims.
One thing you should look into if you are near an old age community is for one of these local HMO plans. I got my 21 year old sister into an HMO that works with old folks and she has everything covered for a tiny payment.
These HMO's milk Social Security, so when they see someone young, they assume you will knever get sick.
She was the first pregnancy that they paid out!
They paid for everything, even though they had to refer her to a Hospital and couldn't take care of her at the HMO.