Hi, I can confim to you that you should go to Tulamben area to get the Best macro, lots of nudibranch, gost pipe fishs, pigmy see horses.
If you really want to see turtles you can do a couple of dives in the gilis, but if you dive gili mipang or tepekong your chances to see some are great as well.
South lombok is great for very experienced divers, there is lots of big trevallies, tuna, eagle ray and it is said that you can see hammerhead sharks in july, august, september when there is cold upwells.
Cheers,