Been to 25 and hoping to increase this in the next 2 years significantly :-) We haven't though been to any of the 3 you mention but we can tell you that Hawaii definitely stole our hearts! From amazing hikes in the green valleys, incredible snorkeling, the amazing experience of seeing lava hitting the ocean - the 4 islands we went have been a massive highlights of all our travels! It is a more expensive destination but wahoo!