For Long Beach only two properties that I would recommend:
Renaissance Long Beach
Residence Inn LONG BEACH DOWNTOWN
Bofh of these properties are in the downtown/harbor area of Long Beach. While the Long Beach Marriott is a very nice hotel, it is at Long Beach airport and there is nothing around it. Also the Residence Inn Long Beach is also near the airport and backs onto the 405 freeway. That is why I put LONG BEACH DOWNTOWN in bold.
There is a lot to do and see right around these two hotels. Go to either hotels website:
I don't know if you will have a car or not. If not, the City of Long Beach has pretty good bus transportation, especially the Passport:
On the passport line is Belmont Shore, my favorite area of Long Beach. Many shops and non-chain restaurants.
If you have any specific questions, please feel free to ask.
You might want to also consider the Courtyard Downtown Long Beach. It's just a couple of blocks down from the Renaissance, and one very short block up from Ocean Blvd. When I stayed there in March, as a gold, they upgraded me to a room with a view of the Queen Mary. The hotel is right in the heart of it all, and less expensive than the Renaissance. Parking is only $12, and they have a full-service restaurant (so free hot brekkie for golds/plats) and room service (it is one of the blessed CY's that didn't go 'Bistro' and is owned by a Marriott family member.) So just another fine Long Beach property to consider, depending on what type of property you're looking for.
Like Lakersfan, I too love Belmont Shore and Naples (I was married in a gorgeous church in Bellie Shore, as a matter of fact...)
They are both located on Shoreline Drive, next to Shoreline Village. My family goes way back with Long Beach. We've lived in a number of neighborhoods there throughout three generations (and four if you count the fact that one of my daughters was born at Long Beach Naval Hospital.) I'm getting quite nostalgic now. My grandmother was an electrical engineer, and did the original electrical lighting design for Shoreline Village back in the day. I have a great night time aerial shot of Shoreline Village taken from their plane (back in the 60's) that shows the lighting that she did (but I'm not a proud granddaughter or anything...).