Thanks all for the feedback. Just to be complete for those searching for this info themselves, this is what I have come up with:
Diving with Cristi (Scuba XT Sea) is probably my first choice based on reviews - perhaps swayed somewhat because of the shear volume of info on this dive op, but I see that as a good thing because Cristi is always offering great unbiased info to the forum, and this should be rewarded. And the "full service" offered by her and her crew sounds just right for me. And I read a review of her AOW class which I would take - a good review which is great for me.
Diving with Alison is probably just about tied with Cristi. Great reviews, long time instructor, she was very responsive with a few emails I sent her. And she is the least expensive for both diving and lessons (would save me >$200 on this trip). Unfortunalty we are looking for hotels with good snorkelling and on the more inexpensive side. For her this limits us to
1) Park Royal - $99pp AI - Food reviews are not great, so we would still go into town for most dinners. We dont like to dress up for dinner, so this excludes us from their better restaurants. The place looks like a very nice "big" resort, which is fine and dandy for us. Swim up bars, multiple pools, jacuzzi, etc. All good things.
2) Casa Del Mar. Not bad price ($92/nt + $35pp AI option. Breakfast only option?) Sounds like an ok enough place. Price is ok. But the only reason we would stay here would be to dive with Alison or Christi
3) Fiesta Americana. Seems similar to Casa Del Mar, maybe a little nicer. A lot of reviews out there and people are generally very pleased. $120/nt + optional $26pp Breakfast/Lunch. Again we would probably not pick this place except to dive with either Alison or Christi.
If I were to dive with Christi I would probably stay at good ol' Caribe Blue, as I alluded to in the origins of the post. She is a little less expensive than Aldora. Caribe Blue seems like a fine little spot. Close enough to town. Has a little restaurant next to it, so we can get breakfast easily. $90/nt is fine. Lots of great (for a dive hotel) reviews.
Aldora we would stay at Villa Aldora. I really have no good reason to rank them 3rd - I would really say each has their merits. Villa Aldora is a good price (as low as $85/nt). Staying here we would have to dive with Aldora Divers. But they are full service (take care of all your gear for you). Most expensive option, but sounds like nobody has complained about that - so extended bottom times must be worth it (sounds worth it to me). They dont have a restaurant, so where do we eat? My wife will be not diving, so can she get lunch/snack easily without a cab to town?
We are not crunched for pennies, so the cost aspect of each option is ok as the benefits seem to all be there. We are going to finalize our decision this weekend. Right now it is between
1) Villa Aldora. Great reviews. Sounds like good atmostphere. Good snorkeling. One-stop-shop simplicity.
2) Park Royal. AI at reasonable price. Drink and eat whenever I want. Go into town for most dinners. Dive with either Alsion or Cristi (toss coin???).
3) Caribe Blue. Divers resort. Great reviews. But hosnestly the only reason I would stay there is to dive with Cristi. But sorkelling is crappy post wilma so this really isnt that high a ranking for us.
This ranking is probably in our order of preference right now. The top two are almost a tossup... which is why I have not yet decided. Doing the AI Mexico thing - getting to take out the hobie cat, eat drink, etc whenever I want has a nice appeal for a relaxing vacation...
I welcome any comments to help me sway one way or another.