Tsukishima is a pretty powerful Bleach villain and it’s safe to say that he’s leagues ahead of Tuxedo Mask. Tuxedo Mask is merely a mortal and he can only hope to do so much damage at one time. Tsukishima is much faster than him and one good slash could probably take out a building. Tuxedo Mask can’t block such a blow. Tsukishima wins.
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One slash, good or otherwise, and Tuxedo Mask’s his best friend. Building destruction is the least of his worries…
True, one hit would likely solo Tuxedo Mask anyway. He’s just not durable or fast enough to even hope for a victory at this point.