This was a survey of 170 respondents, so probably not the most definitive, but interesting to read nonetheless...
http://digital-photography-school.com/bl...lr-lenses/
Top 3 Canon:
1. Canon EF 24-105mm f/4 L IS USM Lens
2. Canon EF 24-70mm f/2.8L USM Standard Zoom Lens (equal 2nd)
3. Canon EF 50mm f/1.8 Lens (equal 2nd)
Top 3 Nikon:
1. Nikon 50mm f/1.8D AF Nikkor Lens
2. Nikon 18-200mm f/3.5-5.6 G ED-IF AF-S VR DX Zoom-Nikkor Lens
3. Nikon 70-200mm f/2.8G ED-IF AF-S VR Zoom Nikkor Lens
It's interesting to see the difference in lens preference between systems (now that there is one...

)
Haha, are you saying that Canon users tend to prefer optically superior L quality glass, while Nikon users stick to the consumer versions?

Well, I was thinking more in terms of who uses what. After all, this is a list of the lenses people call their favourites, so actually owning one is just the first of a long list of mostly subjective criteria. I'm not surprised to see many variations of the normal prime making the list, since these are affordable, straightforward, and high-quality, but more expensive and modern lenses like the 24-105mm f/4 L and the 18-200mm VR must be really making an impression to rank so highly.
I just checked a popular site and found this list of the most-viewed reviews:
1. Canon EF 17-40mm f/4L USM
2. Canon EF 70-200mm f/4L USM
3. Canon EF 24-70mm f/2.8L USM
1. Nikon 70-200mm f/2.8G ED-IF AF-S VR
2. Nikon 80-200mm f/2.8D ED AF Zoom-Nikkor
3. Nikon 17-55mm f/2.8G AF-S DX
Given the sheer number of Digital Rebels sold, I'd have to guess that the single most common lens is its 'kit' 18-55.
Just like how windows was on many computers! hehe

Well I have got the 50mm f1.8 and it out performs the kit lens, but it costs a fraction of any of the others.
I just wish it went to 150mm as well.
![[Image: IMG_5671.jpg]](http://www.shuttertalk.com/forums/images/upload/IMG_5671.jpg)
All done in irfanview. Sharpened once, resized to 640, sharpened once, uploaded. No other PP. Taken in Wales.