I stayed at South Point for four days during my last trip to Las Vegas. My chowdar told me to stay away from the steak, Italian, and Mexican places. I couldn't avoid going to a dinner and a breakfast buffet with my brother (all pretty gruesome except for the not-bad crabs at the Friday night seafood buffet).
Luckily, my brother has many more endearing qualities than a strange predilection to sample mediocre buffets -- the lovable lug loves oysters, so I lulled him away from the buffet for a meal at the Big Sur Oyster Bar, which superficially resembles the oyster bars at the Coast Hotels (but Big Sur is open seven days a week, from 11:00 a.m. until midnight, and 1:00 a.m. on Friday and Saturday). The raw oysters were O.K., and my brother's seafood diavalo was pedestrian (although the seafood was sprightly). But I hit paydirt with the infelicitously named "Seafood Wrap." It was actually a fish taco on steroids, huge hunks of tender grilled salmon and halibut with crisp shredded cabbage and salsa, wrapped in a massive garlicky flour tortilla. It is served with delicious, hot and freshly prepared homemade potato chips. It's a bargain at $10.95.
It's so unusual to find a dish that you love in a casual spot in a hotel. I tried it again the day I checked out and it was just as delicious.