Each new lens inspired me - except perhaps the 10-22 & 400mm - because each tools gives me some new field of creativity.
But there are some lenses which are more inspiring:
- 2.0/100: great focal length (equiv 160mm @ EOS 40D), great bokeh, great contrast and really compact/unobstrusive.
- 2.8/24: highly universal (equiv near 40mm EOS 40D), great overall IQ straight from f/2.8, compact.
both lenses are - for me - a good set to go for landscape, street, etc. and future proof for a FF camera.
The poor man's available light compatible lens duo with great overall IQ!