I just bought an iPhone and am looking to outfit it with a good dictionary.
What are the primary differences between Merriam-Webster's Collegiate Dictionary or the Oxford Dictionary of English? The prices are similar. Assuming cost is not a factor, why would you choose one over the other?
If I'm willing to spend about twice as much, there's also Webster's Third New International Dictionary, Unabridged or Oxford Deluxe or Shorter Oxford English Dictionary. Are the extra words likely to be ones I'd come across? I read a lot, but nothing very old.
Thanks for your help!