I am looking for a "generic" Level-editor where i can build indoor levels. It should also support texture (uv) mapping and doen't have to be necessary bsp based.
I am a little bit lost among all the available solutions (blender, qeradiant, UDK, Unity, etc.). Once again, i am not looking for a game engine, just for something which i could use in my "game". Programming an own editor is my last option, but i don't want to reinvent the wheels.
Also, i am not a content/art specialist (just programmer) so i am looking for something not too complex (blender) and not too simple.
Any advice and suggestions welcome!