I've stayed b4 in both G-Hotel and Evergreen.

GHotel
Pros:
Room is spacious. Designed Zen style which is minimalist. Nice pool. Good service and tasty buffet breakfast. Chili's room service! Have ribs at the comfort in your own room.

Cons:
Car park limited. Buffet breakfast choices not as much as Evergreen. If there is event in front of Gurney Plaza, could be quite noisy if u get lower floors.

Evergreen laurel
Pros:
More carparks than G-Hotel, Vast choice but average tasting buffet breakfast, more facilities like salon, kids room, health club and etc. Service is similar to G-Hotel good, friendly and efficient.

Cons:
Rooms a bit dated since its older. My recent stay was in one of the refurb rooms which has LCD tvs and newer furnitures and carpet. Have to walk more than 10 minutes to Gurney plaza.