Diving in Tenerife

Hi,

Thinking of a Winter holiday in Tenerife, and found a few dive operators
which looked good, (and not so good?)>

Any recommendations, in Playa de las Americas, Los Cristianos, or Los
Gigantes, (or anywhere else .

The sites I looked at were:

http://www.aqua-marina.com/diving-tenerife/ (look really good)

http://www.divingtenerife.net (just OK?)

http://www.divingtenerife.co.uk (look really good)

--
Richard Faulkner