In all that you listed the FTL 45 would be my last choice, Some run good and some have posted with problems and if you have a problem it takes months to get warranty parts.

The other two I think are sold by US dealers and have support.

Looking again I think you are looking at these at United Hobby, If so you will ahve the same with them all as the FTL

One more edit

Do some homework here on the universe and buy from someone that will give you support for what you buy.

Milton