I know...another one of these topics. Please bare with me. I've searched, but couldn't really come to an answer. Here are my choices and my reasoning.
1. 24-70 f/2.8L
2. 16-35 f/2.8 II L
3.Tamron 28-75 f/2.8
4. Tamron 17-50 f/2.8
5. YOU DECIDE! Please? Tell me...why this option?
I am willing to go outside of Canon, but this is a Canon forum after all. 
Also note the relatively large apertures. This lens will serve as an indoor portrait lens with available lighting. I do have a flash, but still have yet to get good at it so any additional help in the form of aperture would be nice. It will also be heavily used in a portrait session I have coming up. It's my first, so I want it to come out well. I already have a Sigma 30mm, which may contribute to your input.
My friend suggested the Tamron, and as I've mentioned I'm open to pretty much anything. I just need versatility and indoor capability. I have a crop body BTW.
It's my daily workhorse.


