I prefer a physical keyboard that literally disappears when I'm not using it.
Last time I checked, "slider" phones have exactly that. Physical keyboards and full sized screens. The trade-off wasn't mentioned because it isn't necessarily true.
But that phone design, too, has tradeoffs. It's thicker, and more failure prone. This isn't an either/or subject you can poll. It's OK to ask if someone prefers the iPhone or a Blackberry. But you can't just separate the keyboard feature and get a meaningful answer.
Last time I checked, "slider" phones have exactly that. Physical keyboards and full sized screens. The trade-off wasn't mentioned because it isn't necessarily true.