I don\'t know about pricing where you are based but I have had and used extensively the Zeiss Planar 135/2 and Sonnar 135/2.8 as well as the Nikkor 135/2 and 2.8:s (in manual focus versions) and I would easily put the 135/2L in top of the list. It does everything as good as - or better than - the others. You have fairly close focus, great sharpness wide open and bokeh that is very smooth.
The Canon 135/2L is my ONLY Canon lens, all the other all alternatives but this one has it\'s place in the kit for sure. Not that it is the only Canon lens that is worth having but it has special qualities (and AF, should you need it - I don\'t) that I haven\'t found in the alternative offerings around 135mm. Buy used if you find one but I think it is worth every penny/nickle new as well.