I used to use puree and have recently switch to crushed and I'm very happy with the results. That of course is going the other way as far as thicknesses is concerned. What I would suggest, buy a can of each, mix up a batch using the crushed instead of the whole, and you should be able to tell whether it's to your liking before you sauce a skin. If you like it, use the whole tomatoes in either a batch of spaghetti or chili.