Choice for graphic libraries (Qt or SDL) on hx4700

Hi,

I want to developp a sound application (with VUmeter, Peakmeter...) on
a hx4700, and I found two graphic libraries : Qt for embedded systems
and SDL.
Is there one which is better than the other one ? I want the library
which is easy to developp and to compile.

-- 
Ker
PS : I have an hx4700 with Familiar Distribution and Opie