Personally I think a bald batch looks much worse than a receding hairline, but that's probably because it's what I'm suffering from! But I suppose bald spots eventually stop whereas hairlines can continue to recede.
I'm hoping to do a bit of work on my crown though. My hairline is fine really, I'd just like a bit of fue to thicken up my crown and make the area a bit smaller. I've definitely seen websites where it is done, but they generally do prefer hairline work.