Ladies,

The M resorts for buffet, Giada for Italian and you might want to try Chica at the Venetian, it’s a South American food spot. As for Chinese I’m not sure about that one.  
Hope this helps  

And I’m also a guy, even though you addressed your post to ladies. So here you go  

chinese food restaurant ping pang pong open until 3am.
I will also add for Italian food I like Rao's in Caesar's.

Thank you Ma'am, I just looked at those restaurants and they sound pretty good.

Thank you Sir, I am definitely going to go try Ping Pang Pong since is right next door to where I am going to be staying.

Thank you Ma'am,  

There are so many great options in Vegas but there's a reason I have  been to these ones more than twice! Yummy  

I agree Jaleo is really yummy!! Have you tried Julian Serrano at Aria and Barcelona at the Artisian? They are really really yummy  too!

check out capo's   https://www.yelp.com/biz/capos-italian-cuisine-las-vegas     its an experience starting with the speakeasy entrance.     some fancy strip Italian place you will forget about in a month,   its 5 minutes off the strip.  its the place the real mob would eat at.   and you better know the password or you wont get in      oh and the food is great, true  momma italian.  

Sinatra at the Wynn and Picasso at Bellagio are fantastic Italian restaurants  

Wing Lei is the ONLY Michelin rated Chinese restaurant in North America. The sea bass will bring tears to your eyes. The deserts are works of art. If you want to find a low brow place, use Yelp and search the restaurants in China Town (a couple of blocks from the Wynn). You can search for the regional cooking you prefer (Mandarin, Szechuan, Hong Kong, etc.). The ratings are plentiful and helpful. Regarding Italian, do you prefer Northern or Southern style? Lots of great places. I like Ferraro's for Osso Bucco, Nora's for family style, The Italian American Social Club for a more off beat experience and Lago at Bellagio for a romantic dinner.

that's a yes on ping pang pong try the roast pork!!!!

Oyster Bar at Palace Station

Carbone at Aria - the best Italian. It is not cheap, but has a very nice, calm environment. One of the best complimentary bread baskets, along with chunks of Parmigiano-Reggiano cheese.  Also add on their bananas foster - prepared table-side....This place would make an excellent "date" night.

Umm good..xoxo

best chinese buffet is on west sahara 8063 Im believe , its called the KRAZY BUFFET.
best italian restaurant is Nora's on west flamingo not far from the Palms.

..  on buffet, Chinese and Italian dining above.   In fact a few of these restaurants have peaked my interest and are now on my to do list .
~
 In addition I would like to add one of my favorite restaurant to dine.  
 I enjoy the small plate dining experience at the Mandalay Bay at Fluer with chef Hubert Keller.
 I find that the small plate experience to be much more enjoyable to me as opposed to having one large entrée.   The meal unfolds smoothly with each small plate offering enough bites to enjoy the flavors with a moment in between to sip your wine and enjoy conversation.  
 When you leave you will feel very satisfied and not have that… Oh my goodness I’m sO full feeling.
 The small plates selections range from American, French,  Mexican and Italian.  
 I highly recommend !

Thank you Ma'am, When I come to Vegas in August I am definitely going to try Fluer.  I do like the small plate idea and sampling cuisine from different parts of the world.  

Bon appétit

Love Capo's it's awesome, everything is so good and the vibe is great!...lol the piano guy even has a crush on my mom hahaha!