Although I have never tried one, the CV Color Skopar would almost certainly kick the others butts...wide angle lens design has vastly improved over the years. The CV 35mm Ultron is also small if you want something faster, can't get it new but there may be a few around second hand.
I personally use the Cosina 35mm Nokton, and even that is pretty tiny for a 1.4.
Well there are two CV /2.5
a) the classic - small diameter focus ring, but focusing 'peg', monster hood optional , small hood in normal box kit, 39mm filter thread
b) the panccake - larger diameter, only focus ring, no hood in basic kit , optional medium sized hood, 43mm filter thread
you can use generic Ch hoods as well
If you are going to use it for fast changing subjects you need the lens that fits your hands, & note not all the classics will have the peg some people discard them... there may be some NOS around if you search.
If you want a multi coated lens for less flare and higher contrast then these two are it, lots of others if you want single coated.
Noel