We just returned from 9 days on Oahu, with 8 days / 7 nights being at Aulani. We had a rental car as well. We also went to Oahu in the first of February and stayed on Waikiki. My wife had a business conference in Honolulu, and I found a really good airfare so we went together. A couple of options not mentioned above -
1.) We stayed at the Hampton Inn & Suites in Kapolei (right next to Ko 'Olina where the Aulani is located) for two nights. This is a brand new hotel, and it's really nice. Easy to get onto / off of the H-1 interstate, and the hotel is attached to a brand new open-air mall in Kapolei. There are lots of good restaurants (albeit mostly 'mainland' restaurants) in and around the mall - 5 Guys Burgers, CPK, Applebees, etc. There is an L&L and a sushi place in the mall also. The hotel has a good breakfast included. The pool at the hotel is nice, ableit on the smallish side. There is a lagoon at Ko Olina (2 lagoons down from Aulani's lagoon) that has public parking and is real nice. We went to the lagoon there prior to moving over to Aulani. They have fresh water wash stations, shade, and nice sand (not great, just nice). Ko Olina is 5-10 minutes from the Hampton. Waikiki is probably 30-40 mins by car, depending on which end of the beach you wanted to go.
2.) The Aston Waikiki - an older hotel on the east end of Waikiki. This was the conference hotel for my wife's meetings. The hotel was good (not great), but it is just a short walk across the street to Waikiki. Hotel prices were $230-300 per night at the rack rate. You could probably do better with
AAA rate or maybe calling the hotel directly. We were on the 22nd floor. The hotel has a funky elevator system that took us 2+ days to get used to. The only room complaint was that the bathroom was a bit dated. Valet parking was around $25/night, but the valet's always had our car ready with 5-8 minutes notice / telephone call prior to leaving the room. There was also a "resort fee" of around $20/night - that got you the WiFi, a morning paper, in-room coffee, access to the gym/fitness room, etc. We did not eat at the hotel restaurant nor swim in the pool. We did get morning coffee and iced tea at the restaurant. The tea / coffee was good, and the prices were in-line with "mainland" prices. The pool looked very nice; the hotel had an excellent beach towel and beach chair service included. There were a bunch of restaurants within walking distance, but we had a car so Leonard's Malasada shop, Koa Pancake House, a Safeway grocery store, and a bunch of other local and "mainland" restaurants were within a 5-10 minute drive.
Sorry if these were rambling thoughts, but both of these hotels might be worthy substitutions if would you would want to consider them.
Thanks,
Kurt H.