I think that there is no simple answer to this question, because what might be a geat choice of contraceptive for one person, might not be ideal for another.
-You need to consider your medical history, how your long term fertility may be affected, how long the contraceptive is effective for, success/ failure rates and possible side effects before making a decision as to the best contraceptive for you individually.
Firstly are you breastfeeding? - If so certain types of pill won't be suitable.
If you don't want to have to take a daily pill, then the pill may not be right for you.
Other options are the Coil (IUD), The Injection (Lasts 3 months), An Implant (Implanon), patches, condoms, femidoms, a diaphram.....etc....But all of these have pros and cons.
I would suggest making an appointment with at your GPs and get a family planning appointment with a nurse to discuss your options. I did this and after weighing up the pros and cons I decided to have the Implant, which lasts for 3 years. I've only had it in for a few days, so I can't comment on any side effects really, but so far i've had no problems.