That's a wide open question. So let me ask you some:
- Do you care if you wait some unspecified time to actually get the iPad in your hands?
- Is there something about one size or the other that better fits your needs?
- Do you actually want or need the iPad now?
Having said that I went with the current iPad mini. The size fit with what I wanted. The lack of Retina for my usage isn't an issue.