I prefer tilting screens despite the added versatility of swiveling ones that also tilt. Swivel alone wouldn't work for me at all - it's either tilt, or tilt and swivel.
I find tilt and swivel just feels awkward - having the LCD out on an extended arm, not in line with the camera, doesn't feel right ergnomically to me. About the only advantage I can see with tilt and swivel screens is the ability to turn the LCD around to face inward for protection. But purely for shooting ergonomics and my own styles of shooting, it's tilt that I use far more than swivel.
Mostly, it comes down to the reasons I need to maneuver the LCD screen from the camera. I shoot mostly optical finder on my DSLR, and live view only gets used when I'm doing odd angles or when doing lots of tripod work with slow shutter or night shooting. For that type of shooting, I find the tilt satisfies 90% or more of all my conveniences, and does so in a way that feels very natural - holding the camera waist-level like a medium format, dropping the camera down by my feet to shoot under a fence, or holding it directly over my head. Rarely would I need to hold the camera out to my left or right, so the swivel doesn't come into play even if I have it. And I don't like some camera designs that require the LCD screen to be swiveled out before they can be tilted...I'd prefer the tilt as the priority, and the swivel secondary.
About the only time I could see occasional use of swivel would be for portrait-orientation tripod shots...I can't say I run into that need very often.
So I'm a big fan of tilting LCDs, which are wonderfully convenient for me when needed, and if swivel is going to be incorporated I prefer the designs that can always tilt up or down first, with swivel secondary, as opposed to the kind that must swivel out before they can be tilted.
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Justin
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