Nothing. 🤣

That's a horrible question. What are you looking for other than a full keyboard? If you're looking for a mid-tier phone, the Gravity 2 is nice. If you want a smartphone, its a matter of personal preference. The G1, although a little older, has IMO one of the best keyboards, second only to the TP2, but if you're a WM hater you'll hate the phone. If you're a WM user, you'll absolutely love it, especially when 6.5 goes official this month. I've always been partial to the chiclet keyboards of the Curves/Bold. Go try some out, its all about personal preference and what you're looking for out of a phone.....

Depends on your preference.
If you prefer WM, TP2 is the very best QWERTY phone.
If you can afford Maemo, N900 is also excellent.
If you prefer BB, get 9700.
I wouldn't recommend any samsung phones because I hate them.