We have tried Education IRA. I consider 529 Plans to be best. I use site Plans529.com which provides general details like latest news and links to states website which have 529 plans.
There is huge marketing effort on 529 plans. Most of that is focused toward broker sponsored 529 plan which are like buying "load" mutual funds. Many states offer direct 529 plans which are mostly like "no load" mutual fund. Each has its advantage and disadvantages. There is no cookie cut formula to find the best plan. Also, "best" plan from expert and magazines like Money or Smart Money may not fit your needs. Do your own research, compare each plan and their offering and decide which one offers to best choice. Remember, you are not investing for month or year but you investing for next 5 to 10 years (based upon your kid’s age). So, make sure to keep that factor in the mind when investing.