Same here. Which is why I'm still using a bunch of analog dirt pedals on my main board.
Actually, I find some of the ones in Amplitube to be quite decent. The fuzzes, while not exactly authentic sounding (from all I know at least), behave better than pretty much any others, the HX ones included (even with the impedance lowered).
There's some gems in the HX ecosystem, though, such as the KWB and the Top Secret OD (no idea how well that compares to the original, but it's my absolute favourite, I wish it had bass/treble controls and more output, though, always running it in tandem with an EQ because of that lack).