Sprint Evo Shift
The HTC Evo 4G is one of the best phones currently available on any network, and it has been for some time. The Sprint Evo Shift is that phone's cousin, and while it shares the name, there are some substantial differences between the Evo 4G and the Evo Shift.
Obviously, one of the differences is the inclusion of a physical slider keyboard - otherwise this phone wouldn't be on this list. With the slider retracted, it's virtually invisible, but it does result in some added thickness. When deployed, the physical keyboard proves to be responsive. It's a four-row model, so you'll have to press a function key to type numbers.
The hardware in the Evo Shift is an 800 MHz Snapdragon processor, which includes the Adreno 200 GPU. This is also a 4G phone, just like the Evo 4G. The Evo Shift has a 3.6" display, which is quite a bit smaller than the 4.3" on the Evo 4G.
Overall, the Sprint Evo Shift is solid Android phone with a full keyboard. Although the processor is not quick by today's standards, the 4G capability makes up for that somewhat.