Almost all boats in the size range you listed are very good boats, the difference is how much creature comfort you want and how much weather YOU can handle. Your discription of your intended sailing area looks to me to be more "coastal" cruising than blue water which is generally considered to be ocean crossing or far offshore.
The Allied Princess, and the Allberg will give you the comfort and the offshore capability as will any of the IP's 31' and up. The S2 11 was designed as a racer/cruiser with the emphasis on the "racer" and is a great race boat--fast but tender--and I think has a deeper draft than the others. Of the three boats you listed, it would be my third choice.
We have an IP32 and I'd feel comfortable taking it anywhere in the areas you mentioned, and we are considering "going south"--Fla. & Bahamas-- in her this coming winter.