Originally posted by: fLum0x
Agreed.
The 3 major islands basically go like this from what I have experienced:
Oahu - Tourist trap and not the real Hawaii, but can be fun. Very populated on the beaches and so forth. Some historic things are there, but are typically expensive.
Big Island - More laid back and very low population. The most interesting island for volcanos and history. One side of the island is a rain forest (nice waterfalls) and the other is a desert with lava rock.
Maui - Very lush with gardens and such. It is becoming more and more populated. It is more laid back than Oahu, but it is still a little up tight if you ask me.
Maui and the Big Island are more of private resort areas IIRC, while Oahu is more of hotels on the beach much like southern Florida. As you can tell, I am a little biased from Oahu after going there. I am going back this September with my fiancee and we will hit up the Big Island for roughly 8 days.
I just found this
link with a quick search for the islands. It should tell you a little bit about each island to give you a rough idea.