I've changed lenses a LOT. All I can say is: the only person you need to please is yourself. What works for you will work for you...You've got quality glass, and all the choices you present are also quality glass, so the only limiting factor here is your abilities and your comfort with your gear. I have owned (and sold) the 35L, 85L, 135L, 200 2.8L, 80-200 f/2.8L, and countless others. Phenomenal lenses, yes, but some worked for me for a while (35L, 85L), but didn't fit my shooting preferences when I switched from APS-H to full frame. Others I didn't use much (135L, which I owned when I only had the 30D, and 200L, which just sat in the closet most of the time). I'd love a 135L now, but I like having a great portrait lens and macro lens in one in the 100L. The 80-200 I traded for the f/4 IS because I wanted lighter weight and IS.
On a crop body, for me, looking at your choices,
I'd get the Sigma 8-16 or Tokina 11-16 (if the 8-16 proves to be good, I'd get that)...the 30/1.4, 85 1.8 and 55-250.
But, I likely don't shoot what you shoot. I rarely have a need for a really long lens, so the sigma Superzoom would likely be wasted on me, but it might be perfect for you. A standard zoom is nice for me occasionally, but I can't justify spending a bundle on one, which is why mine is the inexpensive, yet tremendous optic, Zeiss 28-85 f/3.3-4. I sacrificed autofocus for cost, which for me is a fine tradeoff (plus I find the 28-85 extremely easy to nail focus with the AF confirm adapter I have), but others find a standard zoom absolutely essential, and couldn't go without AF. It's all up to each and every shooter.
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