I was always a fan of NT4, personally speaking.
I felt vindicated when 98 did the same with billg at COMDEX (or was it CES?).
NT4 had an architectural flaw that was introduced to make some people happier - many device drivers started to run in kernel space and their bugs were able to crash the whole machine, unlike 3.5, where a crashed driver could be reloaded.
But you can't run any game because DirectX. I've copied some files from Windows98 and was manage to use some games in windowed mode.