I've only got limited experience of hybrid hens - the main reason for choosing them over pure breeds was because:
(1) they were a lot cheaper to buy POL (~£15 compared to £45 per hen)
(2) they had undergone the vaccination programme which I noticed some pure breed stockists did not do - this seemed important to me at the time as I'd never kept chickens before
(3) a good supply of eggs, albeit in the short term
(4) they seemed okay with confinement as free ranging is not really an option, especially as we do have foxes around here
I picked 4 different breeds - a Warren/Isa/Gold Star, a Bluebelle, an Amber and a Black Star. Each come with their own personalities, but the Amber and Warren seem to be the friendliest. The Warren is also street-wise and very clever, the Amber much more docile and chilled out and also regularly lays the biggest egg of the lot. As for noise levels - this seems to be mainly when they are anticipating their treat/supplements (especially greens, fruit etc as they are unable to forage) but generally for the rest of the day they just make rosey and the odd squawk sounds. They are noisiest when giving an alarm call (when the neighbour's cats come a visiting), or just after laying an egg and telling the world about it LOL.
As for concerns about your neighbours, perhaps let them know you are getting some and offer them any surplus eggs. After I'd had mine a couple of months, I asked if there had been any problems and both sides were not in the least concerned, and even said it felt like being out in the countryside when they did hear them. Bear in mind that they go to roost after sun down so it's really only daytime when there might be noise issues (and as my neighbours on both sides have children playing in the gardens as well as barking dogs, I don't let it upset me)