I've been using ORTF a lot lately and I prefer it.... it creates a very nice image - and if it's too wide for the context, the signal can allways be panned in a little (or use straight XY!)
More or less... more, actually... 110 degrees instead of 90, and 17 cm space between capsules (the idea behind ORTF is simulating the way human ears pick-up sound, hence the 17cm/110 deg. spread!)