Also consider Anda in Bohol. It is less touristy than Pangloa so none of that 'nightlife'. The diving here is beautiful, we have 14km or coral reef/wall with lots of great macro life. As there are less divers its completely unspoilt. Abundance of fish (huge schools of snappers, fusilers, jacks etc), pretty reef fish, snakes, nudibranch, turtles. We've also seen dolphins and a whaleshark in the six months we've lived here. Check out our underwater pics on the Abyss Divers facebook page.
We have around 15 mapped sites although some are huge so you can do 2-3 times and they range from 35m to 12 m so good for all levels. Four dives a day is no problem. Our large banca does a three tank trip every day and then you can do a later afternoon or night dive also.
We generally do gentle drifts as the current isn't so strong here and vis should be 25m plus in December.
We're quite easy to get to from Alona too (pick up a GTexpress from the main road or all the resorts on the area have private hires) so if you wanted to do a 2 centre holiday and try Alona and Anda its easy to do. We're about one and a half hours away.
There are around six resorts, four with dive centres. Entertainment tends to be in resort but its easy to travel between them if you fancy a change. Our resort has a large resto/bar plus a beach bar plus often organises beach bbqs etc to make the evenings varied and we often have families/couples staying for two weeks plus and are well entertained.
All the usual tours (Chocolate Hills/Tarsiers) can be done from Anda and we also have local cave and mangrove tours if you need a day off diving.
You can PM if you need resort website or anything