Belmont Shore would be a good start. Arts District(or East Arts District, since it's east of downtown) is alright, but not the best. Naples is more quiet than Belmont Shore, but otherwise similar. Downtown is Downtown(also called potentially Shoreline Village, Rainbow Harbor, or The Pike).
1st street(not ave) and Falcon should be excellent. Right near Bluff Park, nice neighborhood, etc. Biggest problem in that area is parking. That area would probably be considered part of the Arts District
This map is pretty decent at showing the different neighborhoods.