looking for a few different islands close enough to go from one to the other to explore w/hiking and biking and scenery, beaches, etc - looking for less touristy areas - have no need for the party scene just want to see amazing landscapes, beaches and history.

Have a look at the south coast of Crete.

Check Paros and Antiparos.

Here's the BEST link in the world to find good hiking spots ... some crazy guy in Belgium has devoted his life to finding all the best hikes in the Cyclades Islands, and he's put them all on Line, with texts, directions AND photos!! A treasure trove.
http://www.cycladen.be/IntroductionEng.htm
Three of my favorite isles for hikes: Sifnos, Amorgos, Naxos, altho only the latter works for cycling, and then just along the level shoreline areas. (I trust u mean cycling not motorbiking).

Thank you all - that is very helpful. I will check into all those places.