I don't know if I'd say that.
UT99 was outstanding, UT2003 sucked, UT2004 was remarkably better (more Quake 3-like than UT99, but still a fine game), UT3 is
.
It seems like, overall, UT99 fans prefer UT3 to UT2004. I have yet to try UT3, though...heh.