it's always a good idea to head down to the nearest equipment shop and handle it. Even shoot a few test shots with your camera to give you an idea.
You will appreciate the confidence-inspiring build of either of these two Tokinas. I have the 11-16mm and it's F2.8 constant aperture is supreme for "party pics". Indoors, low light, cramped quarters. Sitting around a table with friends in a cafe, restaurant and suchlike..it great for just that.
of course, landscape enthusiasts also appreciate these lenses for their wide angles. The 11-16 goes down to F22 if you re so inclined (beware diffraction though).
Corner sharpness is better on the 11-16 than the equivalent Sigma 10-20mm, which is also a very popular choice. Build quality far exceeds the Sigma.
They both have a clutch to switch between manual and AF.
Quite heavy with a 77mm filter size diameter.
I little prone to lens-flare at some angles, in sunlight - so keep that hood on.
Yuo can't go wrong with either of these Tokinas and they are fairly budget-friendly as far as wide-angles go.