In the interest of getting some kind of answer to this question, I can tell you that the most common use for the SWCs today is in semi-automatic centerfire pistols used for international sport pistol and for the centerfire match of bullseye. These are all expensive specialty pistols.
Is your question because you don't handload and you are stuck with just those two choices for factory ammo? If so, and if self defense is that important to you, sell the 32 and get something that's made for self defense, like a 357, a 40, or a 45.
If for some at the moment inconceivable reason I had to use the 32 with just those two options for bullets, I would choose the round nose because the velocity is probably higher and the penetration will be better.