Fairmont, Ritz Carleton, Marriott, Hyatt, Westin for starters. If you prefer, you can get a condo for the price of one of those.
I'm going to have to agree to disagree with Rex. While the Four Seasons is an excellent property, the Ritz takes the cake for me. I like the secluded location of the Ritz, and all of those tall pines that line the Bay course. Plus, my favorite beach (Napili) is nearby, and the Ritz is between Ka'anapali and Honolua snorkeling spots.
While it might be a better location (snorkeling off Four Seasons is great, so I say "might"), the actual hotel facility itself doesn't get any better than the Four Seasons. I say this as a huge fan of both Four Seasons and Ritz. The Ritz in Dallas and the Ritz in New Orleans are among my favorite hotels. The Four Seasons in Maui IS my favorite hotel. Ever. Including the 12th century (but re-done) castle I stayed in in Tuscany. Including the 5-star deal in Sorrento, the Ritz in Cayman, and any high-end place in Cabo. The Four Seasons in Maui quite literally blows them all away.