We dove "Texas", "Eddie's Place" and "West End Wall" the last time we visited Las Rocas. These sites are closer to the resort and they were all awesome. We had spent the previous week aboard the Roatan Aggressor and were pretty wiped out. Just wanted to get in a few extra dives in that area.
The trip before that, we dove "Mandy's Eel Garden", "Jumping Jack", "Sea Quest", "El Aguilla", "Tabyana" (great dive!), "Lighthouse Point", "Blue Channel", "Spookie Channel", "Peter's Place", "Gibson Bight", "Aquarium", "Black Rock", "Canyon Reef", "Bikini Bottom", "Dixie", "Hole in the Wall", "Butcher's Bank", "Temptation" and "Pablo's Place" (another spectacular dive).
Here is the AKR dive site map. You can evaluate which sites are closer to them.
My suggestion would be that while you're at Las Rocas, try to dive Pablo's Place, Texas and West End Wall for sure, along with whatever else you decide. Of course everything will be wind/weather dependent. AKR usually sets aside one day to take you over to Mary's Place on the south side and will do the obligatory stop at their private island so you can have time for a little retail therapy.
Many here have much more experience with this side of the island and will give you more input. I know you will have a great time! Hope you'll come back and tell us about your trip