Asking how choke tube X will work with gun Y shooting load Z is the real question....all three drive the equation and changing one will affect the others. That being said, there are a lot of good rules already posted up, but I have missed my personal favorite.
get something and TEST IT....pattern that combo (gun/choke/load) and count pellets (tedious), look at the spread and then tuck those pages of butcher block away so you will KNOW what really works for you. If it doesn't do what you want, sell it online. its cheaper to sell a choke that doesn't work than to blow throw lots of steel shot figuring out you have a bad combination.....or even worse, you could waste 5 rounds of hevi-shot.
I personally run between three tubes:
Cylinder for layout hunting
IC for longer layout shots and good close decoying birds
Pattermaster for longer shots (for me, its about a IM choke)...its as tight as I will go with steel or a hard non-toxic.
Your results may vary...