I like cold water diving. What I don't like is the cold air that comes with it when you get out - at least, in my parts, November through April.
Cold water brings with it more skills, more gear, more prep time... and I like the skills, the gear and the prep. It also means less people, and I like that, too. Also, cold water divers (at least those that seem to really enjoy it) are a different breed, and I seem to like the personalities of those types of divers out of the water.
I try to hit a warm water destination once a year, and the beaches are real nice. The fish are pretty, and there is lots of diving that's so easy that almost everyone can enjoy it. But somehow I always find myself searching out locations off the beaten path, maybe farther away or harder to get to or down some crazy goat trail, where other people won't go.
Last year in Hawaii the swell was up and the diving locations were limited, so my wife and I spent a day at 2-step (Place of Refuge). The place was packed with vacation divers and classes sporting rental al80's and disposable cameras. We set up our chairs and read books and watched the parade all day. Finally, the sun went down, and an hour later we were all alone (except for some locals across the street having their own good time). That's when I made my dive.
I did a surface swim out past the reef and dropped down onto the sand bottom with my 24w HID and lighted up the sparse stuff - like the garden eels. Nice dive.
I donno. I guess I'm just looking for a different kind of experience than the usual crowd. I did the night Manta dive and after 10 minutes I was bored. Just kneeling there in the sand in a circle of divers watching the trained fish do their show, somehow didn't do it for me.
A guy was kind enough to take me on a dive at Monastery North in Monterey CA last year. It was a trimix dive to 150'. We saw a shark. I saw hydrocoral for the first time. The wall at 150' that drops off into forever was amazing. We were the only people on the entire beach. Another guy took me scootering, out past then usual places the swimming divers go. It was fall and the water temps were down but the vis was up. This summer I did dives past 200' in 48 degree water to places humans have never seen.
Those were some of the best dives I've ever had.
Cold water, baby!!