Sunny Isles is more citified for the following reasons:
1. Commercial/retail plazas: restaurants, banks, pharmacies, bars, clothing companies, etc
2. On main street - Collins Avenue
3. Right next to hotels/spas - Trump towers, Acqualina, etc
If you want a quiet version of NY then Sunny Isles would be perfect for you. Aventura is much more quiet and much more residential than Sunny Isles. Aventura Mall is only a 2 minute drive from Sunny Isles. Sunny Isles gives you the best of both worlds - business and pleasure (with the beach just minutes away).
If you're interested in dealing with an agent who lives in Sunny Isles and Aventura then feel free to reach out to me.
Real Estate & Marketing Consultant
Keller Williams Elite Properties