When deciding between wills and trusts for securing your legacy, it is important to realize that trusts are much more versatile than a will and that trusts give you much more control over assets. When you create a last will and testament, you dictate who inherits but you have limited or no ability to protect the assets.
Estate tax is a risk and you will not be able to protect heirs or beneficiaries from financial loss if you simply leave them money in a will. Trusts can give you much more control over assets after you are gone, and- depending upon the kind of trust that you create- trusts can also protect your assets during your lifetime as well. A will obviously cannot do that.