I know Tempest 2,3 have not been unpacked yet..But what would pack more punch endgame?

a Light weapon spec Tempest (with dex higher then str 18/16)
or a Str martial Twf Kensai (both dex and str 16 base)

lets compare using a shortsword Tempest and Longsword Twf Kensai.

FIGHT!!