If you are looking for some pointers as to how you can choose the best version according to your needs, here are some tips:
Choose the TurboTax Deluxe edition if you are looking for deductions related to your job or home ownership.
For deductions associated with stocks or rental properties, choosing the TurboTax Premier would be the best option.
If you have a home business or are self-employed, TurboTax Home and Business would be ideal.
If you want to save money in general, opt for the CD/Download versions.