I've never used any of those others, so I can't quit them. Not yet, anyway. TurboTax, that I can quit when it fails to meet my needs.
BTW, I was also not a willing TurboTax user in the first place -- I was a MacInTax user before it was acquired. It was the superior product and I regretted having to change. Prior to that, I did my taxes in Excel, with spreadsheets that covered all the tax situations that applied to me. It was never simple (and updating the spreadsheets every year to keep up with changes), but I understood my tax situation much better than I do now.
That said, I've been with TurboTax ever since.
