Sounds like the PADI world. I perfer the horizontal trim position with my computer / depth gauge mounted on my right wrist and my hands free in the event that I need them. I also like making nuckle on nuckle contact with my buddy while maintaining eye contact and same depth. I only go verticle after the safety stop and only when I'm concerned about boat traffic.
+1. It puts all the air right under your rear dump and from there, going head down and a couple of kicks can stop you completely or move you back down if you need to. You might have to come a little head up to vent your dry suit if you're wearing one though.