Thanks for the feedback thus far.
Mike K, I did see those reviews that you pointed to and that's the reason why I'm hesitating. I was all set on the 24L II and looking at the reviews, as great as the 24L II is, the 24 TSE II seemed that much better, especially for landscape.
I don't think you can go terribly wrong here, as both are excellent lenses.
It's all about your primary shooting style and other tools at your disposal. I'm able to use a 35L for AF & low-light. If you need a fast lens in addition to a landscape lens, sounds like the f/1.4 is your choice. If you don't, then the TSE would treat your landscape shots better.
I will say that if you go with the TSE you will not be disappointed in its optical performance and flexibility with the movements. Trust me on that one.