I've had both the freestyle and the pump in style advanced. I like that the freestyle I can carry it in the diaper bag and I don't have to plug it in. You just recharge it when it dies. But I also really liked the in style as well.
As for manual, I have the Medela manual pump and I express more with my freestyle.
I asked this question somewhat recently and was told they are equally good just one might be more comfortable for you. I also heard with manual pumps you are able to express more milk and are much more comfortable. I'm not sure at this point as the last time I tried it was automatic and it was unbearable. We purchased a manual one today. I'll be sharing those reviews ASAP!