The Dunes at Maui Lani recently replaced all of their greens and they are beautiful. The rest of the course is about average regarding maintenance. It is a sneaky course with lots of elevation changes and blind tee shots. Kahili is a fun track but is starting to get expensive...they have an Aloha Friday rate that can be a good deal. Book directly through their website for best rates. We personally love Kapalua Bay. Great track, par 3 ocean hole, beautifully maintained. Again, book directly through website for best rates. We have not played the Kaanapali courses but have not been impressed by what we've seen from the practice areas or from the road regarding condition for the price...better bang for your buck elsewhere.
If you ARE set on Plantation check out the renovation schedule. I believe they are doing some course renovation work (reworking bunkers, etc) so it may be a good idea to check with the clubhouse first.