I wouldn't say that Ramon's is the "nicest" as there are many excellent places to stay but as far as noise from the airstrip, that's really a non-issue. It's not a problem at Ramon's or at the other hotels in that area.
To get a handle on the places that are often recommended here, you might search the message board (not the main search engine but the forum search) using a key word such as "lodging" or "where stay"
--Lan Sluder
www.belizefirst.com