We just got off the Allure. It was a bit cool and breezy up on the pool deck and we did have some heavy rain for a bit as well. We didn't encounter very rude people or what I'd consider a lot of children and it was a holiday week.
I'd recommend an ocean view balcony unless you want to people-watch. I prefer to look at the sea/ocean when I'm on a ship. I can people-watch another time.
As far as when to go, I'd suggest end of March or April but....avoid Easter week (before and after) and also Spring Break time - which may overlap. We prefer the Western Caribbean but again it depends on what you want to do. The Western includes Jamaica and the Eastern includes Nassau, both of which people avoid. We were just in Jamaica and did a fantastic excursion. We loved the Allure so much that we booked the Harmony for the same week - same Western itinerary - in 2018! Can't wait! Enjoy your planning!