if just looked at the single member protection, then Wyoming is the better choice. Because in Florida you need multi members.
If you can get a bank account for your Wyoming company (in the USA!!) then you will have lots of fun with your Wyoming company. But since now I don't know any non-US Citizen who achieved this in Wyoming.
@fshore yes, you are right, checked with my accountant guy. You also need to file 1040NR along with some minor fillings, however there can be used estimates and it is almost impossible to be fined for having wrong estimates. They only want to see that you are not doing business in the US, that's all. They won't check an offshore company where they can't get tax from, so every audit would be a loss. The accounting laws in Florida make it easy to book almost everything without bills/invoices so normally a good offshore provider does this accounting tricks for you and you don't have to care about anything and don't need to collect invoices and bills. Sorry for my wrong text I hereby change my "no accounting" answer to "no real accounting needed, because the IRS doesn't want to see bills/invoices"
@Martin Everson form 5472 is only dangerous if no nominee is used. That always should be rule no.1 to use a nominee