tmp:
I can't speak for el nortes but I believe Aldora will dive the east side if harbor master closes the port.
Blue Angel (BA) is down the street maybe 1/4mile from SCC and has 22 rooms.
Rooms are spartan, but very clean with refrig., tv, phone, alarm clock, room safes, balcony , all have full ocean view.
They have one larger boat with a head that goes out at 1100 and again at 1300.
The other boats are smaller, we have anywhere from 2-6 divers onboard and they leave for a 2-tank at 0800 and again at 1100.
The BA does have packages for room/diving and now only offer breakfast.
I believe they offer separate pricing as I have seen people show up in the morning or we pick then up from different piers for diving and have also seen people staying there that dive with other ops and are picked up at the blue angel pier in the morning.
The smaller boats have shade, provide water, fruits, muffins, and are pretty darn fast, going to most all of the sites south.
Funny you mention pricing as I just "ran the numbers" to compare the 2 places for a 7 night/5 dive stay.
When you factor in lunch and dinner that is provided with SCC, the prices are very, very close on a per night basis.
Either place you choose would be good. I have many friends who just love SCC and those that love the BA.